3-1-1 Rule for Liquids in Carry-on Bags

Find out what's allowed before you pack

travel carry on ounces

When you're going through airport security on your next vacation or business flight, you might notice a posted rule by the Transportation Security Administration called the 3-1-1 Rule, which dictates how much liquid travelers are allowed in their carry-on bags. Still, you might not understand exactly what this regulation means for your traveling needs.

The 3-1-1 Rule refers to three core components that govern how many liquids you can bring in your carry-on bags: Each liquid must be in a 3.4-ounce or less container ("3"), all containers must be placed inside one clear quart-sized plastic bag ("1"), and each passenger is only allowed one plastic bag ("1").

In sum, the 3-1-1 Rule states that you can carry as much liquid as can fit inside 3.4-ounce containers that fit inside one plastic quart-sized bag; however, you can bring as much liquid as you feel comfortable carrying in your checked bags as long as these liquids do not violate other TSA regulations that dictate what you can and cannot fly with in general.

How to Pack Your Liquids in Carry-ons

Whether you're hoping to bring your favorite shampoo or conditioner on your weekend trip or need to take contact solution on your flight, you'll need to properly pack liquids to get them through the TSA security checkpoint without hassle.

You'll want to start by either buying travel-size bottles of your favorite products or by purchasing travel toiletry bottles , which you can buy online, at most supermarkets, or home goods stores, and filling them with enough of your favorite products to get you through your trip. Then pack each of these inside a quart-sized ziplock (or other sealable) plastic bag—you should be able to fit four or five.

It's recommended that you pack this bag of bottles in your carry-on last, on top of your clothing and other times, because you'll need to pull the bag out and put it in one of the security checkpoint bins to pass through the X-ray machine. You can also stow it conveniently in an outside zip pocket for easy access.

Liquids That Are and Aren't Allowed

You might be surprised to learn that you can bring travel-size bottles of alcohol in your carry-on or that you can't carry creamy dips or spread as a snack in your suitcase if it exceeds 3.4 ounces, but knowing these rules will help you avoid additional screening at the TSA checkpoint.

You can bring blenders (with blades removed), alcoholic beverages less than 3.4 ounces that do not exceed 70 percent in alcohol content, baby food, some canned foods, and even live lobsters, but you cannot bring gel heating pads, any wet foods that exceed 3.4 ounces, ice cream of any quantity, or firearms of any type. 

For a complete list of all items that are forbidden and permitted through TSA security checkpoints at airports, make sure to check out the TSA website before your flight—you can even snap a picture of an item you're questioning and ask them on the TSA Facebook page whether or not it is allowed.

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How many ounces can you take on a plane?

travel carry on ounces

From toothpaste and deodorant to perfume and hair products, most of the products we use to get ready each day are defined as liquids by TSA . Fortunately, it’s easy to breeze through security if you know how many ounces you can take on a plane, how to pack them, and how to present everything for screening.

Your guide to the TSA liquid limit for carry-on liquids

Regulations for hand luggage liquids permitted on flights originating within the European Union which have to be presented at security control. Plastic bags for hand baggage containing liquids need to be in a re-sealable, clear and transparent bag and have a maximum volume of 1 litre.

When packing a carry-on bag , one of the most important things to consider is how to pack liquids correctly. The TSA 3-1-1 rule is the gold standard for remaining within liquid limits, and it’s quite easy to follow. All liquids must be within containers of 3.4 ounces (100 milliliters) or less, and they must collectively fit within one clear, zip-top bag that is one quart (32 ounces) or smaller in size. 

Each passenger in your group, including a child, is entitled to take advantage of this allowance. While most liquids you’d want to bring will be allowed, it’s also important to understand what is not allowed in a carry-on bag in any quantity.

Toiletries that can be considered as a liquid

Be aware that all of the below toiletries are considered as a liquid by TSA:

  • Aerosol sunscreen
  • Moisturizers
  • Nail polish
  • Mascara 

Understanding ounce limits

Travel cosmetics kit with bottles, pills and cosmetics on bed , top view

Regardless of the product type, including beverages, liquids are all subject to the same 3.4-ounce maximum per container limit. These items don’t have to be in their original packaging, so feel free to purchase travel-size containers to refill with your favorite products, but remember that everything must be specifically marked with a volume of 3.4 ounces (100 milliliters) or less. You can’t make this marking yourself — it needs to be part of the label or design of the container. Finally, don’t forget that TSA liquid rules include gels, pastes, creams, aerosols, and anything that is not fully solid.

I have an inexpensive collection of these empty containers that includes mini spray bottles, squeezable tubes, and pots for creams, so I’m always able to transport any product I need.

Special cases and exceptions

As with everything in life, even the TSA ounce limit for carry-on has some exceptions, but not many. In each case, you’ll need to take some additional steps when passing through security.

Medically necessary liquids

Unrecognizable person preparing a toiletry bag next to a suitcase on a bed

Medically necessary liquids are permitted in larger quantities. While there is no published limit to these, TSA advises they must be in “reasonable quantities,” so bring only what you need to avoid additional questioning and possible confiscation. These include prescribed medications and creams, and childcare necessities like baby formula and breast milk. 

These do not include unprescribed, general health items like sunscreen or common lotions. Declare and present your medically necessary liquids to a TSA agent during screening. They will likely be scrutinized separately and may undergo additional noninvasive testing. Remember that the TSA agent always has the final say, so remain polite and cooperative.

Airport purchases

Beautiful woman buying cosmetics and looking happy

If you purchase liquids like beverages or products after you have passed security, you are allowed to carry these onboard your immediate flight without limit. Liquids sold inside the airport have already been screened, so they’re not subject to any additional restrictions and liquid screening will not occur at the gate. 

However, if you are arriving into the United States from an international flight and making a connection there, you will not be able to bring these purchases in your carry-on during your next flight. Consume, use, or toss them, unless you also have a checked bag. Because you must reclaim all luggage at your first point of entry in the US, you’ll have a chance to stow these purchases inside your suitcase before returning it for the onward journey, leaving you free and clear at TSA carry-on screening.

Duty-free purchases

A side-view shot of a young man wearing casual clothing exploring a duty free shop in an airport in Toulouse, France before catching his flight. The man is smelling aftershave.

Like other airport liquids, duty-free purchases like alcohol or beauty products can join you on your flight without a size limit, as far as TSA is concerned. These are the only exceptions for carry-on during your connecting flight, too. Duty-free purchases can surpass the TSA 3-1-1 rule if they were made internationally within 48 hours; remain in the unaltered, still-sealed packaging prepared by the store; and are presented with the original receipt. These must also be presented separately during TSA screening.

Tips for smooth security checks

Airport security check before flight. Passenger holding plastic bag with liquids above container with laptop and personal items.

Airports across the United States don’t necessarily follow all of the same security procedures, so remain flexible and always do as advised by any TSA agent. That said, there are some key procedures you can expect to be enforced everywhere, and liquid regulations are among the most critical.

Minimize your time at checkpoints by keeping your bag of liquids packed at the top of your carry-on, or in a location that can be accessed quickly. 

TSA offers a clear guide to screening procedures at TSA checkpoints , and you should read them carefully before packing. Most importantly, always obey every TSA agent’s instructions, and remain calm and polite.

I keep my bag of liquids in the external pocket of my carry-on suitcase, and nothing else is packed here. This way, I always know exactly where it is and nothing else falls out when I reach for it.

Bringing full-size liquids on the plane

Upper view of modern woman in white pants and striped blouse in the modern house in sunny summer day packing summer cosmetics in open travel suitcase.

You can’t take large liquids in your carry-on, but you can still bring food and beverages on a plane, along with most liquid products. You just have to pack them carefully in your checked luggage. In a checked bag, there are no size limits for liquids. Instead, just be sure you’re not packing banned liquids, like alcohol over 140 proof, compressed gases, spray paints, or other combustible substances.

Finally, if you’re traveling internationally, check your destination’s customs limits for liquids like alcohol and agricultural products like honey. Your airline won’t screen for this because there’s no security risk, but you may face consequences on arrival during customs declaration. If discovered, the items will be confiscated and you may also face fines and other consequences.

How this guide was created

I fly an average of twice per week, from short business trips with just a carry-on to long-haul flights with plenty of checked bags. In the past, I’ve had several items taken from me at TSA checkpoints, but now I’m in and out in under three minutes. I’ve combined my years of frequent flying with KAYAK’s expert tips and advice to bring you this guide so you can sail through TSA yourself, and be sure your checked bags are violation-free, too.

Now that you understand exactly how many ounces you can take on a plane, it’s time to get going. If you don’t already have a spot in mind, check out some popular destinations with KAYAK’s easy search tools for flights to New York or flights to Los Angeles . If you already know where you’re going, KAYAK’s comprehensive flight guide will make sure you don’t miss a trick from planning to arrival.

About the author

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Airline and TSA Carry-On Restrictions

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Table of Contents

Airline-specific carry-on luggage rules

Tsa liquid limits, how many ounces are allowed on a plane, additional tsa carry-on rules, final thoughts on tsa rules for carry-ons.

Whether you’re purposefully packing light or supplementing your checked luggage, it’s important to keep Transportation Security Administration (TSA) carry-on luggage size in mind when packing a bag and heading to the airport.

After all, not all airlines allow full-size carry-ons for free, and most have slightly different rules on carry-on bag size. Don’t get caught unaware at the gate; hefty baggage fees and inconvenience may await.

» Learn more: Want TSA Precheck for free?

Here’s what you need to know about airline and TSA carry-on size allowances.

Airline carry-on dimensions differ depending on the carrier. When purchasing your flight, you’ll be able to see your carry-on and personal item limits.

A personal item is typically a small backpack, purse, briefcase, diaper bag, camera bag or any item of a similar size that can fit underneath the seat in front of you. A carry-on bag could be anything from a large backpack to a small rolling suitcase. But it’s less shape than size that matters, so here are carry-on luggage size restrictions for each of the major domestic airlines:

Alaska Airlines

On an Alaska Airlines flight, you can bring a carry-on and a personal item for free.

Carry-on bags are limited to 22 inches long, 14 inches wide and 9 inches high including wheels and handles. All three measurements shouldn’t add up to more than 45 inches.

For personal items, Alaska offers examples of a purse, laptop or briefcase.

Alaska doesn't list weight limits, but it says that passengers should be able to lift items that go in an overhead bin.

» Learn more: Guide to Alaska Airlines baggage and other fees

American Airlines

For an American Airlines flight, passengers get one personal item and one carry-on, no matter what type of fare is bought (elite members included).

Carry-on bags shouldn’t be larger than 22 inches long, 14 inches wide and 9 inches high including handles and wheels.

Dimensions of personal items should not exceed 18 inches long, 14 inches wide and 8 inches high.

There are no weight restrictions for carry-on luggage.

» Learn more: American Airlines bag fees: How they work, how to avoid them

Delta Air Lines

Delta flyers are allowed one carry-on bag and one personal item.

Including wheels and handles, measurements may not exceed 22 inches long, 14 inches width and 9 inches high. The total length plus width plus height of baggage must not exceed 45 linear inches.

For personal items, Delta says size examples are purses, small backpacks and laptops.

Three places have weight limits: Singapore (7 kg, about 15.4 pounds), Beijing (10 kg, about 22 pounds) and Shanghai (10 kg, about 22 pounds).

» Learn more: Delta Air Lines baggage fees: How they work, how to avoid them

Frontier charges for both checked luggage and carry-on bags, and the price depends on the route you fly. It also varies depending on if you buy the bags before via the web or mobile app, at the ticket desk, or the boarding gate.

Carry-on bags must weigh less than 35 pounds and must not exceed 10 inches deep, 16 inches wide and 24 inches high. Bags must fit in the overhead bins.

Checked bags must be no longer than 62 linear inches (length + width + depth) and must weigh under 40 pounds. Bags weighing more than 40 pounds will incur additional charges per bag per direction. Bags weighing 41-50 pounds will cost you $50 more and bags weighing 51-100 pounds will cost $100 more.

Personal items cannot exceed 8 inches deep, 18 inches wide and 14 inches high.

» Learn more: Frontier baggage fees: How they work

Not all JetBlue passengers are allowed the same carry-on items. Passengers who bought Basic Blue fares get one personal item (except Mosaic customers who always get a carry-on). Blue, Extra Blue, Blue Plus and Mint fares allow one carry-on and one personal item.

Including wheels and handles, length, width and height measurements may not exceed 22 inches long, 14 inches wide and 9 inches high.

Personal items can be no more than 17 inches long, 13 inches wide and 9 inches high or smaller to fit under the seat in front of you.

There are no weight limits for carry-on luggage on JetBlue.

» Learn more: Guide to JetBlue baggage, cancellation and other fees

Southwest Airlines

Southwest is known for having a generous free checked luggage allowance, but carry-on restrictions are similar to most other airlines — one personal item and one carry-on per traveler.

Carry-on measurements should not exceed 24 inches long, 16 inches wide and 10 inches high.

Personal items are limited to 18.5 inches long, 8.5 inches wide and 13.5 inches high.

Southwest doesn't list weight limits for carry-on items.

» Learn more: The guide to Southwest baggage and other fees

United Airlines

Most travelers flying with United can bring one carry-on and one personal item, but if you’re traveling on a basic economy fare, you’re allowed one personal item only (unless you’re a MileagePlus Premier Member, are traveling internationally or have a MileagePlus credit card, like the United℠ Business Card ).

Including handles and wheels, the maximum dimensions for a carry-on are 22 inches long, 14 inches wide and 9 inches high.

Personal items are limited to 17 inches long, 10 inches wide and 9 inches high.

United doesn't publish weight limits for carry-ons.

» Learn more: What you need to know about United Airlines baggage and other fees

Depending on the airline you fly with as well as how long you’re traveling for, you might wonder whether you’re better off traveling with a checked bag rather than a carry-on . This can be especially relevant if you’ve got some liquids with you that exceed the TSA carry-on liquid limits.

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If your credit card offers reimbursement for the application fee for programs like TSA PreCheck or Global Entry, you must pay the fee with the card. You cannot submit a claim for reimbursement if you paid with some other method. Reimbursement will usually appear as a statement credit in your account within two months.

Cards typically offer reimbursement of only one fee once every four to five years. Check the terms and conditions of your card for the specific rules that apply. Note also that these cards only reimburse the application fee for a trusted traveler program. They don't automatically enroll you in the program or guarantee that you'll be accepted by the program. You still have to apply and go through the required screening, which in the case of TSA PreCheck and Global Entry includes an in-person appointment.

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» SEE the best credit cards that pay for TSA PreCheck and Global Entry

Before you even make it to your departure gate, you have to clear a TSA checkpoint. This means you must adhere to the TSA liquid limit in order to make it through security.

Containers that are 3.4 ounces or less are allowed, but there are other rules to keep in mind as well.

Carry-on liquid limit

The TSA liquid rule — also known as the 3-1-1 rule (3 ounces, 1 bag per 1 person) — is straightforward: "You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item." Any liquids in larger containers will have to go into checked baggage (and are subject to overweight fees).

A basic clear, zip-top container qualifies as an eligible quart-size bag for passing through security.

The easiest way to manage the amount of fluids in your carry-on is to start with containers that are no larger than 3.4 ounces or 100 milliliters and your quart-sized bag.

The maximum carry-on liquid size and amount will depend on how much you can fit into your single quart-sized bag.

3-1-1 liquids rule exemptions

The 3-1-1 liquid rule has several exceptions if you're traveling with certain liquid medicines or baby food.

TSA allows larger amounts of certain medically necessary liquids, gels and aerosols in "reasonable quantities" for your trip. The amount allowed is not stated.

The only catch? You must declare the medication to TSA officers at the checkpoint for inspection, alongside any accessories associated with your medicine, such as freezer packs or syringes.

Labeling your medical items can help facilitate the screening process.

Formula and breast milk are considered medically necessary liquids, and thus exempt from the carry-on liquid limit. Water and juice for babies is also allowed in quantities greater than 3.4 ounces or 100 milliliters.

These child and infant nourishment items are allowed in carry-on baggage and do not need to fit within a quart-sized bag. You may also bring teethers that are gel- or liquid-filled and canned/jarred/processed baby food in your carry-on baggage.

» Learn more: 7 ways to avoid paying bag fees

Duty-free liquids

The final exemption to TSA liquid limits apply to duty-free liquids purchased during inbound international flights. It's important that these bags are secure and temper evident and stored in a transparent bag.

Be sure to keep the item's original receipt handy in case a TSA officer asks to see it.

» Learn more: Can you bring food through TSA?

The only flammables allowed in a carry-on are cigars, cigarettes, disposable and Zippo lighters, and dry batteries (like AAs or AAAs).

Camping and sports equipment

You can carry-on an air mattress with a built-in pump (by following special instructions), antlers, basketballs, footballs, baseballs, soccer balls, bike chains and bike pumps. Bicycle allowances vary by airline, but baseball bats, bear spray and bear bangers are never allowed — nor is aerosol insecticide.

Other items

There are some banned items, including knives, firearms and box cutters. A full list of which can be found on TSA’s website .

Still not sure if something you plan to carry-on is restricted? Send a photo to AskTSA on Twitter or Facebook Messenger to find out.

» Learn more: What foods you can bring on a plane

No matter which airline you fly with, first make sure you know what size carry-on you’re allowed to bring onboard and are familiar with (and prepared for) TSA’s carry-on restrictions, too. Then, you can expect a smoother and less stressful airport and airliner experience.

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travel carry on ounces

How Many Ounces Can You Carry On A Plane? (TSA Liquid Fl Oz Rules)

Last Updated on February 20, 2022

As you are aware there are restrictions on how many ounces of liquid you can carry on a plane.

When you travel you need to know the TSA liquids rules before you go through the TSA’s security screening.

If your bottles are over the liquids limit you won’t be able to take them and they’ll end up in the trash.

The guidelines on this post refer to the liquids permitted in carry-on luggage. Travelers taking liquids in checked bags should refer to this post.

When Flying, How Many Fluid Ounces Can 1 Bottle Contain?

The first part of the TSA’s 3-1-1 rule states that each bottle or container of liquid that you bring in your carry on luggage can be no larger than 3.4 ounces .

If that seems like a strange number to you it’s because 3.4 ounces is equivalent to 100 milliliters. This brings the US airplane liquids limit in line with the rest of the metric world.

Many products such as shampoo, shower gel, etc are available in travel size bottles that are under this 3.4 oz limit.

You can also buy refillable travel bottles and decant some liquid from your larger bottles of shampoo into the smaller bottles.

This can be a real money saver in the long run and there is another advantage of refilling bottles too.

Often 3.4 oz is too much liquid for the duration of your trip. For example, a 50 ml bottle of face moisturizer might last 4 months.

So 3.4 oz of face moisturizer would be enough to last 8 months, so that’s overkill when you are only going away for a weekend vacation.

Refillable bottles and containers come in all shapes and sizes and this means you can take enough product to cover you for the duration of your trip.

And all this matters because you are not allowed to bring unlimited 3.4 oz bottles on a plane.

There is a maximum limit to the total number of fl oz you can pack in your carry on and that’s defined by your plastic toiletries bag.

How Many Ounces Of Liquid Can You Take On A Plane In Total?

The second part of the 3-1-1 rule states that all your liquids bottles or container most be packed inside 1 quart-sized plastic bag .

There are 32 ounces in a quart but you won’t be able to fill your plastic quart bag with 32 ounces of liquid. We estimate that you can for 7 or 8 travel-sized bottles in a quart bag. So it’s a reasonable guess to say that you can bring roughly 25 total liquid ounces with you on a plane .

The last part of the 3-1-1 rule states that you are only permitted 1 quart-bag per passenger. So you can’t pack 1 quart-bag full of toiletries in your purse and another quart bag in your carry-on bag.

Liquids You Didn’t Realize Are Considered Liquids

There are some liquids, gels, creams, and pastes that people often forget to pack in their toiletries bag.

If you can squeeze it, smear it, pump it, spread it, spray it, or spill it then it’s considered a liquid. So make sure you pack it in your quart bag.

The following is a brief list of some of the frequent offenders:

  • Peanut Butter
  • Hair mousse
  • Lush face mask
  • Liquid Eyeliner

What Types Of Liquids Are Banned Entirely?

A few liquids are banned entirely even if they are under 3.4 oz.

  • Alcoholic Beverages over 70% ABV
  • Aerosols that are not toiletries
  • Most flammable liquids
  • Most toxic liquids
  • Fertilizer 
  • Insecticide 

The reason these are banned is for safety. The TSA is trying to stop dangerous substances from getting on planes.

Exceptions Where You Are Permitted To Bring More Ounces

Liquids are not restricted just to annoy you. 

The TSA has no interest in stopping you from taking necessary liquids when you fly. It’s all about safety at the end of the day.

So there are some exceptions to the 3-1-1 rule where you are able to bring quantities of liquids greater than 3.4 oz.

Here are some examples:

  • Baby formula
  • Breast milk
  • Juice for kids

If you are taking any of these exceptions with you then you should remove them from your carry-on bags at the checkpoint for additional screening.

Duty-free liquids that you’ve purchased after the security checkpoint can be greater than 3.4.

You can also carry that bottle of water or soda that you bought from the store after the security checkpoint.

The Verdict

These were the rules for packing carry-on luggage. Passengers traveling with checked baggage will be able to take more liquids.

However still some rules on flying with liquids in checked luggage especially flammable liquids. 

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Everything You Need to Know About the TSA’s Liquid Limit

The tsa allows liquids under 3.4 ounces in your carry-on—but what’s considered a “liquid” isn’t always obvious..

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Backpack in tray at TSA check

Don’t forget to remove your liquids when going through TSA screening.

Photo by Jaromir Chalabala/Shutterstock

Whether you’re a carry-on-only kind of person or not , knowing the Transportation Security Administration’s (TSA) liquid limits is essential for anyone who travels by plane in the United States. Yet understanding which of your toiletries, foods, and other items even count as “liquid”—let alone how best to pack them—can get confusing. Use this guide to understand the TSA’s rules and restrictions about liquids, common exceptions, and tips to help ensure your next airport security screening goes smoothly.

What is the TSA liquid limit?

The TSA’s liquid limit for carry-ons—known as the 3-1-1 rule—allows travelers to pack liquids, aerosols, gels, creams, and pastes under 3.4 ounces (100 milliliters) in their carry-on bags. Passengers are allowed up to one quart-sized bag per person , or roughly nine 3.4-ounce containers in a single quart-sized bag. Anything more will have to go in a checked bag or risk being tossed out.

If your liquids are stored in containers larger than 3.4 ounces, even if there’s only 3.4 ounces left inside the bottle, you can’t bring them through security.

Completely empty bottles, such as your reusable water bottle , are allowed through the TSA checkpoint since (spoiler alert!) they don’t contain any liquids at that moment.

Which toiletries TSA allows in your carry-on

The TSA allows all of the following common toiletries in your carry-on only in containers that are 3.4 ounces or less:

  • Shampoos and conditioners
  • Lotions and sunscreen
  • Gel hair products

In other words: yes, you can bring toothpaste, deodorant, and sunscreen through TSA checkpoints but only if they are in travel-sized containers.

Powders and powder-like substances, including baby powder and some makeup items, aren’t restricted in your carry-on bag. But if you’re carrying more than 12 ounces (350 milliliters) of a powder, you’ll need to place it in a separate bin for X-ray screening, and it may be subject to additional screening—so it’s a good idea to budget an extra few minutes at the security checkpoint if you think this might happen.

Tips for packing your toiletries in your carry-on

To comply with TSA regulations, invest in small, reusable toiletry bottles, like these capsules by Cadence.

To comply with TSA regulations, invest in small, reusable toiletry bottles, like these capsules by Cadence.

Courtesy of Cadence

Especially if you don’t have TSA PreCheck , it’s helpful to pack all of your toiletries in a quart-sized (or smaller) clear plastic toiletry bag for screening. Although improved airport technology means that far fewer air passengers (both in PreCheck and non-PreCheck lines) will have to take their liquids out out of their carry-on, it’s still helpful to have all of your liquids in one bag just in case you get pulled aside for additional screening. For an upgrade from that large Ziplock, we recommend the standard-sized Clarity Jetset Case from Truffle ($88), which has a clear window panel and is comparable in size to a quart-sized bag.

Since toothpaste is considered a liquid, paste, or gel by the TSA, most of us toss those tiny one-ounce tubes in our carry-on bags. However, if you want to ditch the hard-to-recycle packaging, consider toothpaste tablets, an ecofriendly alternative that’s not subject to the 3-1-1 rule. We like Humankind’s fluoride toothpaste tablets ($12), which resemble small mints and turn to paste when you crush them between your teeth. Matador has also recently released a reusable toothpaste tube ($10), which you can fill (and refill) with your regular toothpaste.

For travel toiletries that are easy to rebottle (like shampoo or body wash), consider investing in reusable bottles or containers so you can always keep your preferred brand on hand. Some of our favorite TSA-approved toiletry bottles include:

Buy Now: GoToob three-pack of 3.4-ounce bottles, $30, rei.com

These easy-to-fill, leakproof silicone tubes are ideal for shampoos, conditioners, lotions, and body washes. GoToob’s line comes in a variety of sizes, ranging from 1.7 to 6 ounces, and are easy to clean between refills.

Matador FlatPack

Buy Now: $13 for one or $35 for three, matadorup.com

Each three-ounce, TSA-approved bottle is made from a durable, waterproof, nylon-based fabric. Like GoToob, they’re leakproof and easy to fill, but thanks to their flexible, fabric-like design, they will shrink to their contents, taking up less space in your pack. >> Read the full review of the Matador FlatPack

Buy Now: $14 for one or $74 for six, keepyourcadence.com

The refillable travel containers by Cadence are small, leakproof “capsules” that click together with magnets. At 0.56 ounces, they’re best for makeup and toiletries you don’t need much of—like a weekend’s worth of shampoo or a week of that under eye cream you only need a dab of.

Foods are subject to liquid limits

The TSA’s 3-1-1 rule applies to food too, meaning you’ll need to make sure any foods that count as liquids, gels, or pastes (like yogurt, peanut butter, pâté, jams, or that tasty pimento cheese spread you tried to bring home from Charleston) are less than 3.4 ounces or packed in your checked bag. There are some exceptions, like frozen foods and juice for babies, and the TSA’s website is the best resource to check for specific items.

Exceptions to TSA’s liquids rule: Full-sized liquids that you can bring through security

The TSA has several important exemptions to its liquids rule. You’re allowed to bring full-sized bottles of the following:

Hand sanitizer: Due to the coronavirus pandemic, the TSA currently allows travelers to bring up to 12 ounces of hand sanitizer in their carry-on bags. These will be screened separately.

Medication: You’re allowed to bring medically necessary liquids, aerosols, and gels through security. This also includes the ice or gel packs you may need to keep your medications cool. You are not required to store these items in a plastic, resealable bag, but you should remove them from your luggage and let the TSA officer know what you’ve packed.

Baby formula and breast milk: Like medication, you can bring freezer packs to keep these items cool, and you should remove them from your luggage and notify an agent when you go through security. More baby-related exceptions? Gel or liquid-filled teethers and canned or jarred baby food.

Of course, the final decision on whether an item is allowed through the checkpoint rests with the TSA officer.

If you’re ever unsure about a specific item, the TSA’s website has a handy, searchable list of prohibited and allowed items worth checking before you travel. You can also now text the TSA with your questions.

This article was originally published in 2022. It has been most recently updated on March 21, 2023, with additional information.

Hot air balloons floating over high desert peaks in Cappadocia

Here's the 411 on the TSA's 3-1-1 liquids rule

Samantha Rosen

We've all been there. Waiting in the Transportation Security Administration line only to hear agents call for a "bag check," often because a traveler had a liquid product in their carry-on that's over the allowed limit (or some sort of other prohibited item).

It's a process that can sure slow things down, particularly on the busiest travel days. As you pack for your trip and consider what to put in your carry-on or checked luggage, it's important to consider what the TSA's limits are for liquids and similar products.

Since September 2006, the TSA has gone by the 3-1-1 rule when it comes to those types of products, including items like toothpaste, shampoo, conditioner, mouthwash and lotion -- sunscreen included.

For more TPG news delivered each morning to your inbox, sign up for our daily newsletter .

In short, the 3-1-1 rule is: Each liquid you bring through the TSA checkpoint must be in a 3.4-ounce or smaller container ("3"), all containers must be placed inside one clear quart-size plastic bag ("1") and each passenger is only allowed one plastic bag ("1").

travel carry on ounces

If you meet those requirements, you should get through security without issue. However, if your liquid items are larger than 3.4 ounces each, you'll have to leave them in your checked bag.

travel carry on ounces

There are a few exceptions, though.

The TSA has kept in place a temporary pandemic exception to the rule, allowing up to 12 ounces of liquid hand sanitizer in carry-on baggage.

Part of this exception: The hand sanitizer will have to be screened separately since it's technically over the limit. You'll need to remove it from your bag before it goes through the scanner.

There are also exceptions for larger amounts of medically necessary liquids, gels and aerosols. You can bring those products in larger, "reasonable" quantities, the TSA's website says. However, you must declare those items to security officers at the checkpoint for inspection.

This could, obviously, take a little more time than if you're traveling without those items.

This exception doesn't include sunscreen, despite calls to relax sunscreen restrictions at TSA checkpoints. Like other liquid products, sunscreen bottles over 3.4 ounces must go in your checked luggage.

There are also many liquids you cannot bring with you .

You can bring creamy cheeses, liquid chocolate, liquid coffee, creamy dips and spreads, gravy, honey, hummus, ice cream, jam, jelly, juice, syrup, peanut butter, salad dressing, sauce, salsa, soda, soup and yogurt as long as they are in a container of less than 3.4 ounces according to the TSA .

Related: Should you get TSA PreCheck or Clear — or both?

And yes, you can bring your water bottle with you, even if it weighs more than 3.4 ounces — as long as it's empty. This can also be a great way to save money at the airport, since -- as the TSA points out -- many airports have filling stations for reusable water bottles.

When in doubt, consult the TSA's list of what you can carry through the airport and check with your airline.

Additional reporting by Clint Henderson and Sean Cudahy.

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TSA Liquid Rule for Carry-on Bags (100 ml or 3.4 oz)

The TSA Liquids Rule for Carry-on Bags (3.4 ounces)

Understand these rules so you don’t get held up on the TSA security line!

TSA 3-1-1 Rule

Exceptions to the tsa liquids rule, tsa liquids rule for precheck, does tsa consider makeup a liquid, converting 3.4 oz to ml – how many ml is 3.4 ounces, what does 3.4 oz (100 ml) look like, converting 100 ml to oz – how many oz are in 100 ml, 100 ml to cups, 100ml bottle size – how big is a 100ml bottle, wrapping up: tsa liquids policy, more carry-on content:.

Before you finish packing to head to the airport, always double-check your carry-on bags and make sure you don’t have any bottles or other items that don’t comply with the TSA liquids rule, (known as the 3-1-1 rule).   

By the time the TSA finds that expensive bottle of perfume or lotion in your bag, it’s too late and you’ll have to say goodbye and hand it over to get through security and board your plane on time.  It’s happened to my family many times and could easily have been avoided with a quick check before leaving.

To help make sure this doesn’t happen to you, we’ve created this article that will tell you everything you need to know about the TSA liquids rule, including how much liquid is 100 ml, what are travel-sized bottles, what is considered a liquid, etc. Basically, all the stuff that could get confiscated when making your way through airport security.

What’s the TSA Liquids Rule?

The TSA liquids rule states that you can bring a quart-sized bag of liquids, aerosols, creams, gels, and pastes in your carry-on bag and through the airport security checkpoint. However, you are limited to containers that are travel sized and contain less than 3.4 ounces (100 milliliters) per item.

TSA Liquids 3.4 oz or 100 ml

Items that are in packages or bottles larger than 100 milliliters (or 3.4 ounces) will have to go in your checked luggage .  In addition to larger liquids, any liquid that is more than 3.4 oz or 100 ml and is not contained in a secure, tamper-proof bag must be packed in your checked luggage.

Each liquid must be in a 3.4-ounce or less container (“3”), all containers must be placed inside one clear quart-sized plastic bag (“1”), and each passenger is only allowed one plastic bag (“1”).

TSA 3-1-1 Rule

There are 2 exceptions to the TSA 3-1-1 Liquids Rule

  • Medications, and
  • Infant/Child nourishment

Medications larger than 100ml

TSA allows larger-sized packages of medical liquids, gels, and aerosols in your carry-on. This also includes medical accessories such as freezer bags, pumps, syringes, etc. These items do not have to be in a plastic zip lock bag, but you will have to declare these items to TSA officers at the checkpoint prior to inspection.

Here’s a video that provides all the details you need about traveling with medication.

Formula, Breast Milk, and Juice

Formula, breast milk, and juice for infants and toddlers are allowed through the security checkpoint. These can be in quantities greater than 3.4 ounces or 100 milliliters and are allowed in carry-on baggage.

Similar to medications, just inform the TSA officer of what you have and remove the items from your carry-on bag so they can be screened separately from the rest of your belongings.

Ice packs, freezer bags, frozen gel packs, and other accessories required to cool formula and breast milk are allowed in your carry-on bag.

The TSA PreCheck Program allows registered travelers the ability to go through expedited screening lines at over 200 participating U.S. airports with over 80 participating airlines. Once you are approved in the program you don’t need to remove your 3-1-1 liquids from your bag.

TSA Pre-check liquids rule 100 ml

Actually, you can avoid removing any of the following items during the screening process:

  • 3-1-1 compliant bag
  • Light jacket/Sport coat/outerwear
  • Laptop / iPad from bag

To apply for PreCheck, go to tsa.gov/precheck . From here you can enroll and make an appointment online or walk in at any one of over 380 enrollment centers . It can take up to 30 days to obtain a TSA PreCheck known traveler number.

What does TSA consider a liquid?

According to TSA guidelines, any substance that is free-flowing or viscous is considered a liquid. This includes liquids, aerosols, pastes, creams, and gels.

According to the TSA, “Makeup in a solid or powder form is allowed in carry-on and checked bags with no quantity or size limitations. However, when packed in carry-on bags, makeup in a liquid, lotion, gel, paste, or creamy form, must be in containers that are 3.4 ounces or less. You can take as many travel-sized liquids as you can comfortably fit into one quart-sized, zip-top bag.”

When it comes to makeup, the following are some examples of liquid cosmetics:

  • Nail polish,
  • Moisturizers,
  • Foundation,
  • Mascara, etc.

How much is 3.4 oz?

Now that you understand the basic concepts of the TSA liquid rule, it may help to have an idea of what constitutes 3.4 oz or 100 ml, since most people don’t naturally know how big a 3.4-ounce container or a 100 ml bottle is.

So if you’re wondering exactly how much is 3.4 oz or how big is a 100 ml bottle, we will walk through that for you here.

3.4 ounces (oz) converts to 96.388 milliliters (ml). For purposes of simplicity, the TSA rounds this up to 100 ml

travel size toiletries less than 100 ml or 3.4 oz

Most of the toiletries you would bring on a trip come in travel-sized packages that can be bought at any drug store or grocery store. These travel-sized items are typically 3 ounces (90 ml) and generally provide enough lotion, shampoo, or toothpaste for a 5-day trip. If you’ll be traveling longer, you may need to stock up on a couple of extra bottles or plan on purchasing more upon arrival at your destination.

100 milliliters (ml) converts to 3.3814 ounces (oz). For purposes of simplicity, the TSA rounds this up to 100 ml

100 milliliters (ml) converts to .422675 cups, so it’s just under 1/2 cup.

how many cups are in 100 ml?

A 100 ml bottle is fairly small. To give you a visual, look at the image below that shows a 500 ml water bottle vs. a 100 ml spray bottle. The 100 ml bottle is about 3 inches tall and the water bottle is about 8 inches tall.

how big is 100 ml bottle

Hopefully, this guide will give you a better idea of what the TSA considers a liquid and what size they will let you bring on your carry-on. Knowing this information in advance can save a lot of headaches at the airport!

  • Spirit Airlines Carry-On Liquid Policy

travel carry on ounces

Tim is a business road warrior and avid leisure traveler who has flown over two million miles in the air and spent well over a thousand nights in hotels. He enjoys sharing tips, tricks, and hacks to help readers get the most out of their travel experience and learn how to “travel like a pro”!

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travel carry on ounces

TSA Liquid Rules Ultimate Guide (3-1-1 Explained) [2023]

Bringing your liquids through airport security is not always as straightforward as you might think.

There are several rules that apply when bringing your liquids through airport security checkpoints and, yes, many are obvious to those of us blessed with a shred of common sense.

But in some cases there are some less obvious restrictions that could apply to your liquids.

And when you start talking about things like baby essentials, medications, and liquids like alcohol, there are many lesser-known rules and exceptions that come into play.

Violating these rules can sometimes mean slowing down the flow of the screening checkpoint (something we all should want to avoid) but in other cases it could mean violating the law and you basically becoming an airport criminal.

And nobody wants that.

So it’s a good idea to get acquainted with how these rules work and in this article, I’ll give you a detailed breakdown of the 3-1-1 rule and also talk about the many different types of exceptions and additional rules that apply to different types of liquids such as medications and alcohol.

Table of Contents

What is the TSA Liquids “3-1-1 Rule?”

The TSA Liquids 3-1-1 Rule states that you can only bring liquids in containers no larger than 3.4 liquid ounces (100 milliliters) and that all of your liquid containers must fit “comfortably” into one clear, quart-size bag.

Where does the 3-1-1 come from?

It’s just an easy way to memorize the different requirements that make up the rule and I’ll hit on those below.

3.4 fluid ounces or (100 mL)

The “three” indicates that your liquids must be contained within a container no larger than 3.4 fluid ounces or (100 ml).

(TSA uses 3.4 ounces because it’s easier to remember but really  100 ml comes out to 3.3814 fluid ounces. )

One of the biggest things that people get confused about is that the 3.4 ounce requirement applies to the size of the container and not the liquid within the container.

So let’s say that you have a 6 ounce container with only 2 ounces of fluid inside.

You may think that because you have under 3.4 fluid ounces of liquid, you are good to go but because your container is larger than 3.4 ounces, you cannot bring that through TSA.

The other big thing to know is that this refers to fluid ounces which relates to volume and is very different from ounces used for weight.

Some products like honey could weigh 4 ounces but still fit inside of a 3.4 fluid ounce container. It helps to know how to convert ounces/grams to fluid ounces .

Tip: Use the free app WalletFlo to help you travel the world for free by finding the best travel credit cards and promotions!

travel carry on ounces

1 quart-sized resealable bag

The first “one” means that your liquids must fit within 1 quart-sized resealable bag. Typically, this will be a clear Ziploc bag which just makes things easy for everybody.

The key thing to note here is that the containers must fit “comfortably” inside this resealable bag.

What does “comfortably” mean?

It basically just means that the bag is not bursting at the seams. (Think about how a pair of jeans should fit when you’re being honest with yourself about your waist size.)

If you are not able to easily reseal your bag, then your contents may not be fitting comfortably inside.

In such a scenario, it’s possible that a TSA agent could ask you to throw something out in order to allow your bag to comply with the rules.

In my personal experience, I have not seen a lot of TSA agents enforce the “comfortable” requirement very strictly but if you have bottles poking out of your liquids bag, I could see that being an issue.

travel carry on ounces

1 quart size bag per person

The last requirement is that you are allowed 1 quart size bag per person.

The easiest way to comply with this is to simply separate your liquids bag from your carry-on and have one liquids bag in your bin when going through security.

Otherwise, it could look like you are trying to bring through two bags of liquids.

The best packing tip I have for this is to keep your liquids bag at the top of your carry-on so that you can easily retrieve it.

There’s nothing worse than scrambling to find that liquids bag while trying to get ready to go through a screening checkpoint.

travel carry on ounces

TSA Pre-Check liquids rule

TSA Pre-Check allows you to bypass the main security line and pass through a screening line that is usually much shorter and quicker. This also means avoiding the full body scanner in many cases. It basically makes you a VIP when it comes to airport security checkpoints.

If you have TSA Pre-Check , you can take advantage of several benefits including things like:

  • Shoes can stay on
  • Belt can stay on
  • Light jackets can stay on
  • Laptops allowed to stay in bag
  • Liquids (3-1-1) can stay in bag

That last perk is the most relevant to the liquids rule as you will not have to remove your liquids bag and place them in one of the bins when going through security. You can simply leave them in your carry-on and pass through the metal detector without any issue.

I highly recommend that you look into getting Pre-Check in order to expedite your security screening. It will only cost $78 for five years and all you have to do is pass a background check. You can also get it if you are approved for Global Entry ( read how to get approved here ).

travel carry on ounces

New hand sanitizer liquids rule

Due to the ongoing threat of coronavirus and the potential threat of spreading germs throughout airports and aircraft, TSA recently implemented a change with respect to hand sanitizer.

Passengers will now be allowed to bring one hand sanitizer bottle up to 12 ounces. These larger bottles will be screened separately so just be aware that it could add some extra time.

What exactly is a “liquid?”

In some cases, what constitutes a liquid will be very clear.

For example, it’s pretty much common sense that water inside of a water bottle is a liquid. The same applies for cologne, mouthwash, etc.

But liquids also can include less-obvious forms like aerosols, gels, creams, or pastes.

This means that several common items you would be bringing along for your trip could be considered a liquid like: toothpaste , lotion , sunscreen, shaving cream, shampoo , conditioner, and others.

You can find travel-sized products for most of these so it’s usually pretty easy to bring along items that comply with the TSA liquids rule.

Other items

You need to be mindful of other items that could be considered liquids like deodorant . For example, the following types of deodorants will be subject to the 3-1-1 rule:

  • and Roll-On deodorants

Prohibited items

Just because you have something like an aerosol and it is in a container no larger than 3.4 ounces, that does not mean that you can bring it as a carry-on.

There are quite a few prohibited items like aerosol insecticide, bear spray, etc. that are not allowed as carry-ons. In fact, some of those items may not even be allowed on the plane at all. This is a good place to search if you are in doubt about whether or not you can bring a particular item.

Be aware that some items like hairspray may even have size restrictions when packed in your checked baggage.

Picture of shaving cream going into hand

Foods can also be liquids

One aspect of the TSA liquids rule that throws a lot of people off is that they forget many foods also qualify as liquids.

Here is a non-exhaustive list of food items that will fall under the liquids rule:

  • Liquid chocolate
  • Creamy dips and spreads
  • Mashed fruits such as applesauce
  • Jam and jelly
  • Maple syrup
  • Oils and vinegars
  • Peanut butter
  • Wet pet food
  • Salad dressing
  • Salsa and sauces

Basically anything that is usually poured, scooped, squeezed, slurped, or mashed will be considered a liquid for TSA purposes.

If your food is solid on the other hand , chances are you can bring it through.

Picture of a bowl of hummus

TSA rules for liquid medications

The liquids rule provides exceptions for medical supplies and medications .

TSA allows larger amounts of medically necessary liquids, gels, and aerosols in “reasonable quantities” than your 3-1-1 allowance.

You do not have to have a prescription for these items but keep in mind that you need to comply with state laws regarding prescriptions and controlled substances.

This leaves two questions often to be asked and answered.

The first is what is considered “medically necessary?”

For example, is contact lens solution medically necessary?

It seems the answer to that is probably yes given the TSA states, they allow “larger amounts of medically necessary liquids, gels, and aerosols in reasonable quantities for your trip” on the page regarding contact lenses.

So if in doubt check the website and then inquire with AskTSA if you still don’t know.

The second question is what is considered a “reasonable quantity?”

What is deemed as a reasonable quantity is a subjective determination.

According to the TSA, you should bring what’s necessary for the duration of your trip (e.g., seven days) plus a day or two just in case things get delayed or canceled.

If you stick to what you think will be necessary for the duration of your trip, I don’t think you will often run into trouble. But if you’re bringing a six month supply of medication on a four day getaway, that’s when you might start to run into trouble if questioned.

TSA states that you must declare them to TSA officers at the checkpoint for inspection.

You also want to remove these from your carry-on so that they can be screened separately from your belongings. (You do not have to put your liquid medication in a plastic Ziploc bag.)

Just be aware that if one of your liquid items declared as medically necessary sets off the alarm, it may require additional screening and may not be allowed.

travel carry on ounces

Baby essentials

You are allowed to bring formula, breastmilk, and juice for infants or toddlers in “reasonable quantities” through airport security. According to the TSA, reasonable quantities for baby essentials typically means the duration of the flight.

When bringing these items through security, be sure to separate these from your carry-on bag so that they can be screened separately from the rest of your items.

If you are carrying liquids in excess of 3.4 ounces, you are advised to inform the TSA officer at the beginning of the screening process that you have excess liquids. You can do this when you are unloading your items into the bin.

In many cases, excess liquids will be screened by x-ray.

It’s also possible that an officer may ask you to open up the container and potentially even transfer a small quantity of the liquid for testing.

If you are worried about the effects of an x-ray machine on your liquids, The Food and Drug Administration states that there are no known adverse effects from eating food, drinking beverages and using medicine screened by X-ray.

If that is not good enough assurance for you, you can ask to avoid the x-ray machine.

Additional steps may be able to be taken to clear the liquid but the traveler will likely have to undergo additional screening procedures which could include a pat down and a thorough screening of all of your carry-on property.

You will also be allowed to bring along ice packs, freezer packs, frozen gel packs and other accessories required to cool formula, breast milk and juice.

If these are in a partially frozen state or perhaps appear like a slushy they will be subject to the same screening as described above.

Other permitted baby items include gel or liquid-filled teethers, canned, jarred and processed baby food.

Just always be aware that these items may have to undergo additional screening.

TSA liquid rules for alcohol

Bringing alcohol through TSA presents a number of different challenges.

First, your alcohol in most cases will have to comply with the liquids 3-1-1 rule. This means that you won’t be able to bring in regular bottles of liquor or beer.

It is possible to find small bottles that are under 3.4 ounces (mini-liquor bottles are often around 1.7 ounces, so this means that they are small enough to be brought on the plane as a liquid).

But contrary to what many people think, it’s also permitted to bring your own alcohol in one of your own containers.

The catch is that there are specific restrictions about what type of alcohol is allowed on board and that can be allowed as a carry-on. You really need to make sure that you are abiding by these rules because you could be violating federal law otherwise.

The first regulation to know is that alcohol beverages with an alcoholic percentage above 70% (140 proof) is never allowed on the plane . In fact, alcohol with such a high alcohol percentage is considered a hazardous material.

If the alcohol content is above 24% but not above 70% then the alcoholic beverage must be in its retail packaging. A lot of popular alcoholic beverages for within this range. Here are some  ranges  for the alcoholic content of some common beverages:

Alcohol Percentage Content

  • Vodka | ABV: 40-95%
  • Gin | ABV: 36-50%
  • Rum | ABV: 36-50%
  • Whiskey | ABV: 36-50%
  • Tequila | ABV: 50-51%
  • Liqueurs | ABV: 15%
  • Fortified Wine | ABV: 16-24%
  • Unfortified Wine | ABV: 14-16%
  • Beer | ABV: 4-8%
  • Malt Beverage | ABV: 15%

And finally, one of the most important things to remember is that you are not allowed to serve yourself your own alcohol when flying.

Instead, you must request a flight attendant to serve you the alcohol or else you will be violating FAA regulations. Some flight attendants will happily serve you your own beverage but others will not be so inclined.

If you purchased alcohol at duty free store, different rules apply in that scenario. Basically, you can bring your duty free alcohol through TSA security but you have to comply with three separate requirements:

  • The duty free liquids were purchased internationally and you are traveling to the United States with a connecting flight.
  • The liquids are packed in a transparent, secure, tamper-evident bag by the retailer and do not show signs of tampering when presented to TSA for screening.
  • The original receipt for the liquids is present and the purchase was made within 48 hours.

Read more about this rule  here .

bottles of mini alcohol

Checked baggage liquid rules

Many times, you can simply place your liquids in your checked baggage and not have to worry about that pesky 3-1-1 rule.

This is usually the way to go on longer trips when you might be bringing large quantities of things like shampoo or shaving cream.

But as mentioned above, you still need to make sure that the type of liquid is allowed on a plane. Certain materials may be considered hazardous and you could be violating the law by bringing those on board.

If you are loading up your checked baggage with a bunch of liquids, make sure that you double bag if there is potential for the liquids to spill!

TSA Liquid Rules FAQ

The TSA 3-1-1 rule does not apply to checked baggage. However, there are some restrictions on what liquids can be transported in your checked baggage. There may also be limitations on the quantity of liquids when it comes to importing large quantities of things like alcohol. At some point, you might have to obtain a license for certain goods.

TSA definitely enforces the liquids rule and I would recommend not trying to circumvent the rule. It’s possible that an agent may be more lenient than another in certain circumstances but I would always assume that an agent will be enforcing strictly so that I don’t run into any unexpected issues.

TSA has the rules in order to detect potential explosives and other harmful materials that exist in liquid state.

The same liquid rules apply for both domestic flights and international flights. One difference that you might encounter is when you purchase duty free goods before an international flight. See the duty-free section above for more details. Also, when flying internationally it is recommended that you get to the airport extra early. It is possible that you could get hit with SSSS and be forced to undergo a heightened security screening, so always plan out extra time.

While you might view your makeup as special, there are no special rules for your makeup when it comes to TSA. They must abide by the same 3-1-1 rule explained above. Read more about makeup rules here.

No, you do not have to take out your liquids if you have TSA Pre-Check.

The same TSA liquids rule will apply to all airlines. So if you’re flying American or Delta, the rules will be the same as if you were flying Southwest or United. With that said, some airlines do have some differences in how they handle acceptable baggage so you should make sure to read up on the latest baggage policies for the airlines.

If you are traveling from an “international last-point-of-departure” to the U.S ., powder-based substances in carry-on baggage greater than 350mL or 12 oz. may require additional screening. If your substance is over 12 ounces and cannot be cleared it will not be allowed onto the aircraft cabin. TSA recommends that you transport powders in your checked baggage.

TSA has several rules you need to follow when it comes to drinking liquids through airport security. The most well-known is the 3-1-1 rule but there are other considerations you need to think about like foods that might trigger the rule and exceptions for medical and baby essentials. In the end, try to be as reasonable as possible with what you are bringing through and you will run into few problems.

tsa liquids rule 3-1-1 infographic

Daniel Gillaspia is the Founder of UponArriving.com and the credit card app, WalletFlo . He is a former attorney turned travel expert covering destinations along with TSA, airline, and hotel policies. Since 2014, his content has been featured in publications such as National Geographic, Smithsonian Magazine, and CNBC. Read my bio .

I will be traveling from Mexico April 25th. Will I be able to bring back a bottle of Tequila in my check in luggage probably wrapped safely? Thanks, Regina Green

The above is good detail but how about: electric shaver and charger electric toothbrush

Yes and yes!

Check these out:

https://www.uponarriving.com/tsa-rules-razors/ https://www.uponarriving.com/tsa-toothpaste/

I will be leaving Chicago going to Manila via Istanbul on 21 July 2022, Turkish Airways. I will be bringing 4 bottles of Scotch whiskey in original container, unopened and sealed and properly packed with bubble wrap. Is this allowed?

How do I know which states allow medication‘s to be in a travel organizer, and not in their original bottles? I am flying from Philadelphia with a layover in Ireland, and finally to Paris on Aer Lingus.

Hand sanitizer rules have reverted back to the 3-1-1 guidelines.

Thanks for this update. Do you have a source on that? Couldn’t find updated info.

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travel carry on ounces

How Many Ounces Can You Take On a Plane?

W hether you’re flying carryon only or want to make it through TSA security without having someone confiscate your toothpaste, here’s what you need to know.

The short answer is 3.4, but there’s more you need to know, so keep reading for your best shot at a smooth travel experience and keeping your toothpaste.

The Liquids Rule

You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the airport security checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item .

Ideally, this contains basic toiletries for a quick trip or what you need to freshen up during international flights. We’ll give you the scoop on  how many ounces of liquids you can take on a plane, what types of liquids are allowed and how to pack them properly.

Read More: Expedited Passport Hasn’t Arrived? Don’t Panic!

Passenger Safety is the Reason Behind the Rules

Restrictions on liquids in your carry-on bag are in place to ensure the safety of all passengers on the plane.  

The Transportation Security Administration (TSA) has strict guidelines on the amount of liquids that can be carried onto a plane. According to their guidelines, you can bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag. Each container of liquid must be 3.4 ounces (100 milliliters) or less. This includes items like shampoo, conditioner, lotion, hairspray, sunscreen, toothpaste and other personal care items or liquid items.

It’s important to note that these guidelines apply to all liquids, regardless of whether they are in a bottle, tube or other container.

Easy to Remember – The 3-1-1 Liquids Rule

When preparing for air travel, remember the 3-1-1 rule. Each liquid you bring through the TSA checkpoint must be in a 3.4 fluid ounces or smaller container (“3”), all containers must be placed inside one clear quart bag (“1”) and each passenger is only allowed one plastic bag (“1”).

One of the ways to make compliance with the 3-1-1 rule easy is to use trial size toiletries, such as deodorant, shampoo and conditioner, nail polish, mascara and other items of makeup. If you have an extensive or high-maintenance personal care routine, the 3-1-1- rule might be more difficult for you to adhere to.

If you don’t follow the rules, you’ll be subject to additional screening by TSA security officers, which will often result in delays, for you and for other passengers.

Read More: How to Pack a Suitcase in 29 Minutes

Rules for Lighters

You can only carry one lighter on board. You should put it inside a resealable plastic bag (like the ones used for liquids), which you must keep on you throughout the flight.

Rules for Baby Formula

If you are traveling with a baby or small child, you are allowed to bring baby formula, breast milk and juice in reasonable quantities that exceed the 3.4-ounce limit in your carry-on luggage.

Make sure you inform the TSA officer in advance if you’re traveling with larger quantities of liquids.

Rules for Freezer Packs

Frozen liquid items are allowed through the checkpoint as long as they are frozen solid when presented for screening. If frozen liquid items are partially melted, slushy or have any liquid at the bottom of the container, they must meet 3-1-1 liquids requirements.

Note that medically necessary gel ice packs in reasonable quantities are allowed regardless of their physical state of matter (e.g., melted or slushy) with or without the presence of breast milk. Please notify the TSA officer at the checkpoint for inspection.

Liquids versus Powders

The TSA considers liquids to be any pourable substance, such as water, shampoo, lotion, etc. Items not considered liquids include powders, such as baby powder and ground coffee, and makeup, such as face powder or powdered eye shadow.  

However, if you are traveling with powders, the TSA requires that you place them in a clear, plastic, sealable bag and place them in your carry-on bag for inspection.

By the way, peanut butter is considered a liquid by TSA, so whether you’re toting individual packets of peanut butter or a PB&J to eat for later, be aware that this counts toward your allotment of liquids if someone hones in on your sandwich during the screening process.

Packing Liquids in Your Carry-On Bag

Make sure you pack your liquids to avoid spills or leaks. Here are some tips on how to pack liquids in your carry-on bag:

  • Use a clear, plastic, sealable bag to hold your liquids. This will make it easier for TSA agents to inspect your items.
  • Make sure all your containers are 3.4 ounces or less. If you have larger containers, transfer the contents to smaller, travel-sized containers.
  • Place the bag of liquids in an easily accessible place in your carry-on bag. This will make it easier to remove the bag for inspection at security checkpoints.

If you have TSA PreCheck, you will be allowed to leave your liquids inside your bag when it goes through security. It’s still a good idea to have them easy to grab, just in case you get selected for additional security screening.

Rules for Liquids in Checked Baggage – The Limit Does Not Exist

If you want to bring liquids, toiletries, food items, baby food, your full size bottle of perfume or hand sanitizer, in excess of 3.4 ounces, put those in your checked luggage. Just make sure to seal them properly in a plastic bag in case the caps come loose during your flight.

There is no TSA liquid limit for liquids in checked baggage.

TSA Rules for Alcoholic Beverages

Want to bring alcohol on the plane? You can. For carry-on, you are limited to containers of 3.4oz or less that can fit comfortably in one quart-sized, clear, zip-top bag.

If you have anything larger than that, you’ll need to make arrangements to check your bag when you check in for your flight. If you buy alcohol at the duty-free shop, you’re already inside security, so the rules probably don’t apply. You’ll still have to adhere to your airline’s carry-on rules, though.

Prohibited Items

The TSA bans liquids that could make people sick if opened or spilled. Don’t check them in your luggage either. So, if you’re tempted to pack bleach, don’t.

Insecticides, gasoline or any type of flammable liquids are also prohibited. If you’re in doubt about whether you should pack something n your carry-on, check the TSA website before packing it.

The most important thing to remember is that TSA allows a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag.  Each container of liquid must be 3.4 ounces or less. If you think you have an exemption or exception, research it before you get to the airport.

The post How Many Ounces Can You Take On a Plane? appeared first on She Buys Travel .

Whether you’re flying carryon only or want to make it through TSA security without having someone confiscate your toothpaste, here’s what you need to know. The short answer is 3.4,...

TSA Liquids Rule: The 411 on the 3-1-1 Limit

Despite the TSA’s 3-1-1 liquids rule having been in existence for over ten years, many people are still a bit confused by, or just want to double check that they are in compliance of, the rules regarding bringing liquids on a plane. Many people may think that some things with liquid in it (like makeup) or a container that’s bigger than 3.4 ounces yet has less than that amount in it still qualify (spoiler alert: they don’t). So let’s run through every scenario we can think of and determine whether it’s allowed.

what does the 3-1-1 Liquids rule mean?

People know this phrase, but many are unsure of what it specifically means. Well, according to TSA rules, the “3” stands for 3.4 ounces (100 milliliters) of liquid, the first “1” stands for one clear zip-lock bag holding your 3.4 ounce containers, and the second “1” means per traveler. So there you go, you are limited to one bag with as many 3.4 ounce containers as can fit into your carry-on .

3 = 3.4 ounce containers (you may not Carry-on larger containers with less than 3.4 ounces of liquid)

1 = 1 clear zip-lock bag (with as many 3.4 ounce containers as you can reasonably fit in), 1 = 1 per person (no exceptions).

If you would prefer not to do any math, we recommend this TSA approved set of containers and plastic bag to avoid any confusion.

Obviously, if you are checking your bag then you can place full-size liquids in there, but those should still be in a plastic zip-lock bag as well, if for no other reason than the cap might come off and everything gets all over your clothes.

Why was this rule implemented? A terrorist plot in the U.K. attempted to carry liquid explosives onto a plane, disguising them as soft drinks. This led to lasting legislation in the United States, requiring everyone to significantly alter their travel methods, especially when it came to soaps and shampoos. But far more things with liquid in it are subject to the same rule than people realize.

are there 3-1-1 rule exceptions?

Yes. There are really only two of them, but they are crucial to some passengers – and no, TSA Precheck status is not one of them. One of them is medications . To avoid any problems, make sure these medications are clearly marked, separate them from other toiletries so that they aren’t mistaken as such, and inform the TSA screening officer of them. They don’t have to be in a zip-lock bag, and you’re allowed to bring necessary accessories (bags, pumps, syringes, etc.) on board with you as well. The TSA obviously still has to do their job and X-ray your items, and they may ask you to transfer the medication from its bottle to a clear separate container. If you don’t want them to be scanned, then the alternative is to go through a pat-down procedure.

The second exception are things necessary for your children , such as formula, breast milk and/or juices. The requirements here are generally the same as they are for medications; mark them, separate them, inform the TSA. The screening officers do still have to inspect them just to make sure there aren’t any concealed prohibited items, and you can request alternate methods of search other than an X-ray. Some specialty considerations that you are allowed to bring include: gel or liquid-filled teethers, canned or jarred processed baby food, as well as ice packs or gel packs.

It should be noted that duty free items purchased internationally are also allowed as long as they are in a cleat tamper-evident bag and you have the receipt showing that it was bought less than 48 hours prior to your flight. So now that you know what’s excepted when it comes to accepted liquids, where does the TSA draw the line?

what are the tsa carry-on liquid rules?

If you’ve traveled you’re well aware of this, but if you haven’t, it’s important to know that the liquids in your zip-lock bag must be taken out of your luggage and placed in a separate bin to be X-rayed. Now that you know the second most crucial thing about airline travel (the first being wear clean socks) here is a brief list of all the allowable liquids so long as they are in a 3.4 ounce container and inside that clear bag:

  • Conditioner
  • Some aerosols, such as: antiperspirants, shaving cream, hair spray, and other toiletry items. We’ll discuss the prohibited aerosols in a minute.
  • Liquid makeup, such as eyeliner, nail polish and foundation must comply with the 3-1-1 rule. Powder cosmetics are accepted with no limits.
  • Alcohol, but DO NOT drink it on the plane.

Here now is a much longer list of the liquids and gels that are NOT allowed on an airplane , even if it is in a 3.4 ounce or less container:

  • Aerosols that aren’t personal care items, such as: air fresheners, self-defense sprays and other flammable aerosols. Basically, if it’s not meant to be sprayed on your body, it’s not allowed.
  • Vaping devices (many of these are liquid-based)
  • Any paint, gel or liquid that is flammable, such as lighter fluid or gasoline
  • Gel-type candles
  • Spillable batteries
  • Paint thinner

A couple of these things, such as the candles, are allowed in your checked baggage, but for the most part all of these things aren’t allowed in any of your bags. There are extra things to consider as well. Say you’re traveling abroad and you buy a snow globe for your child as a present. Well that thing better have less than 3.4 ounces of liquid in it, otherwise you’ll have to risk putting it in your checked baggage.

At the end of the day, the TSA security officer has total discretion about whether or not to allow something of yours through security. But if it’s in a 3.4 ounce or less container, in a clear zip-lock bag, and is not flammable, you’re probably good to go.

44 Comments

Is there a specific size limit for the Ziploc bag? Also, can I carry on “alcohol Inks” it’s a liquid crafting ink. Less than 1oz each.

Does powder makeup have to be in the quart bag or no?

May I bring gummy vitamins and medications on the plane? I can’t take the pill form…

Yes, you can bring them onboard (as long as they are not liquid vitamins that are over the limit)

Can one bring a jar of salsa in a carry-on?

Unless it’s the world’s tiniest jar of salsa, probably not. Salsa is a liquid and if it’s more than 3.4 ounces or 100 milliliters, you can’t bring it on board the plane. Personally I’d go for the ounces over 100ml because technically that’s only 3.3814 ounces ?. You can always pack it away safely on your checked luggage, just be sure to wrap it as safely as possible. Bubble wrap is always a good idea for glassware. If it’s just a plastic container, I suggest putting that in a plastic bag just in case.

Can I bring my purse and a carry on bag on the plane? Also, can I bring my 2 small bottles of pills Metoprolol (for heart) and Omeprazole (acid reflux) in my purse or carry-on bag?

Most airlines alow both a carry on and a personal item (the purse would be considered a personal item). Medication in pill form should be fine, if it’s a prescription I would make sure to bring documentation.

How about coffee mini creamers ?

If you get the creamers inside the terminal (i.e. from vendors) they should be fine. Otherwise, they would have to go in the quart sized bag.

Can I bring essential oils of 5 Mil in my carry on?

Can i bring a quart bottle water frozen – ice/not slushy thru the checkpoint? Great article!

My TSA approved containers to carry shampoo and such are actually labeled 4.0 oz. is this going to b ok? Purposely purchased these because it said TSA approved!!

if my shoe inserts, prescription orthodics, have gel in them can I wear them on the plane? They are expensive, I wouldn’t want them to be confiscated.

Orthotics will be fine.

Reference the duty free info. I purchased duty free alcohol and upon entry into the US and re-entry thru TSA at IAD, they insisted they had to open the sealed duty free bag to double check all items. Apparently, double check meant running them through a spectrometer or something. Since one of the items was similar to Baileys in a non-clear bottle and a thick non-clear liquid, it didn’t pass the test. My choices were confiscation or try and mail it back outside TSA. Luckily, United helped me package it as another checked bag. The point I’m making is unless I was being scammed, don’t assume everything purchased in duty free will clear TSA. BTW, the TSA website made no mention of this policy as I’d checked.

sorry may i bring all these items on the plane i missed typed the prior email. may i bring on the a bag of cookies unopened, bag of chips unopened and a 1 liter of soda unopened or a liter of bottle or can water brought at my local grocery store? or do i need to purchase everything behind TSA security check in

You cannot bring liquids on the plane. 1 liter of soda far exceeds the 3 ounce rule. The food should be fine.

I have the perspiration drug of Testosterone that was prescribed by my doctor. I will need a syringe to inject this medication. Will I be able to bring this in my carry-on?

Yes, but it is a good idea to get a note from your doctor.

I have prescription medication “Androl Gel and I am sure it is greater than 3.5 oz. and an alcohol based gel. Can this be kept with my other medications in my carry on?

Medications are allowed in greater quantity than other liquids and gels. I would bring a note or prescription from your doctor just to be sure.

I wish to carry 5 packets of garden seeds bought at a local nursery to India in my checked baggage. Is it allowed? Thank you.

You may need to declare that at customs.

I am taking Canadian Maple syrup as gifts (300ml bottles) in my checked luggage. Can I wrap them well in bubble wrap or do they have to be visible in a clear bag?

They do not need to be in a clear bag in checked luggage, although putting them in a watertight bag isn’t a bad idea in the event they break.

can i bring an un opened package with glade plug ins

If there is liquid in them, they may need to go in checked luggage.

Almost all references to the 1-quart bag dimensions are just width and height. What about the depth? Or is the overall volume of 1 quart the ultimate bottom line? If so, what is that volume?

The volume is 1 quart. They are standard sized bag.

does mascara fall under the 3-1-1 rule?

Chris, common sizes of mascara and similar products are exempt from the 3-1-1 rule. Now if you have a monster sized mascara, then I would put it in a ziptop bag.

Can I bring more than one liquor bottle which are less than 100ml or 3.4 oz?

Travelers may carry as many 3.4 ounce bottles of liquid (mini bottles of liquor are 1.7 ounces) that fit comfortably in one, quart sized, clear plastic, zip-top bag. Comfortable means that the bag will seal without busting at the seams. One bag is permitted per passenger. Travelers may take up to five liters of alcohol with alcohol content between 24% and 70% per person as checked luggage if it’s packaged in a sealable bottle or flask. Alcoholic beverages with more than 70% alcohol content (140 proof), including 95% grain alcohol and 150 proof rum, cannot be packed in checked luggag

Can I hand carry chicken eggs?

You may be able to, but the final word rests with the security agent that day. If you do, pack them in plain egg cartons to they are easy to take out and inspect. If they are not fertile, offer to let them scan them. Be courteous and understand you may have to toss them.

Can I carry on 10 hand made cookies, tightly wrapped in saran wrap in a bag so easy to view to inspect. About 10–they are hand made holiday cookies.

Yes. But save me some.

small tube of toothpaste, crystal light individual packets, instant coffee individual packets Are these items allowed?

Toothpaste falls under the 3-1-1 rule, the rest of the items are allowed.

Can I bring my hair straightener ( flat iron ) with me on the plane?

Yes you can Diana.

May I carry on a 1# (one pound) bag of Dunkin Donuts ground coffee?

Yes. No issues with coffee, no matter the brand.

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Last Updated on 6 years by tsatips

The U.K. Ended Its Travel-Size Liquid Rule for Carry-Ons—Will the U.S. Do the Same?

By Jessica Puckett

Travelers seamless pattern. People going with luggage. Travel and transportation theme flat vector illustration.

Passing through airport security in the U.K. is about to get easier and more streamlined, as U.K. officials announced that the rule mandating liquids in carry-on bags be 100ml (3.4 ounces) or less will no longer be enforced, starting in June 2024. 

When the rule ends, passengers will be able to carry-on liquids measuring up to two liters in volume, the BBC reports . Additionally, passengers will no longer need to remove electronics from bags, such as laptops. Previously, major airports in the U.K., such as London Heathrow, were known for their stringent enforcements of the liquid rules.

In the U.S., similar policies are still in effect at airports around the country, with the TSA enforcing its so-called “ 3-1-1 ” liquid rule for carry-on bags: all liquids must be 3.4 ounces or less and fit in a single, one-quart clear bag. (Though there are  some exceptions to those rules.)

The more relaxed screening policies in the U.K. are possible thanks to new X-ray scanners that use computed tomography (CT) technology to produce more detailed, 3D images of luggage contents. (The technology is similar to a CT scan you might get at a hospital.) Most airports in the U.K. will need to upgrade their X-ray machines to the newer high-tech versions by June 2024. 

The same enhanced CT technology has been in use at U.S. airports for several years now, with the TSA rapidly expanding the scanners to dozens of airports nationwide. As of May 2022, the agency said it had deployed at least 402 CT units to 163 airports around the country. Over the summer, officials installed more of the scanners at additional airport checkpoints in anticipation of an uptick in air travelers, including at Billings Logan International Airport in Montana , Albany International Airport in New York, Buffalo Niagara International Airport in New York, Cincinnati/Northern Kentucky International Airport and Raleigh-Durham International Airport in North Carolina, the TSA  said in a release . 

With that in mind, will the TSA follow the U.K.’s lead and ditch its rules for carry-on liquids? Currently at U.S. security checkpoints with CT scanners, passengers already have somewhat more relaxed screening rules, as they aren’t required to remove their travel-size liquids, electronics, or food from their carry-on bags, according to the TSA. That was a precursor step to the new U.K. policy at  London City airport , which received CT scanners in November 2022 and announced that passengers no longer had to remove any items from their bags. 

But some industry analysts say scanning equipment is only one piece of the puzzle . “I believe that TSA and other aviation security organizations will study the results from the UK’s decision closely and carefully,” says Henry Harteveldt, an aviation expert and president of Atmosphere Research. “If behavioral profiling and other similar tools allow security organizations to potentially detect people who may pose a danger to airline crews and passengers, it may help reduce the need for measures such as the 100ml limit on liquids and the TSA’s 3-1-1 policy.”

Indeed, it seems U.S. officials plan to take it slow when considering any changes to the current TSA 3.4-oz liquid rule, which has been the international standard since it was implemented in 2006. “Computed Tomography technology produces 3-D images that can be rotated and combined with advanced detection algorithms to produce a substantial improvement in security screening,” Robert Carter Langston, TSA's press secretary, said in an emailed statement. “While we have them deployed at more checkpoints, we are years away from announcing a change to the current liquids rule.” 

Although U.S. passengers still need to pack travel-size liquids for the time being, that doesn’t mean that the security checkpoint hasn’t been seeing other improvements. Aside from rolling out more CT scanners, TSA has been deploying credential authentication technology: new ID scanners that don’t require passengers to show their boarding passes . Earlier in 2022, the agency also began accepting digital IDs from the Apple Wallet app at certain airports and testing an expansion of facial recognition to whisk travelers through even faster.

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28 things you should always pack in your carry-on bag.

Create your packing list of necessities and some new in-flight essentials.

What to Pack in a Carry-on Bag

travel carry on ounces

Achieve peak comfort on your next flight with these carry-on items.

Packing for a flight is exciting – but it can also be overwhelming. With a little planning and a concise list of airport and in-flight essentials, you can maximize space in your carry-on bag.

To help you decide what to pack in your carry-on bag, our team compiled this list of must-have items. Download the packing list here to use while you prep for your next trip, then read on to learn more about what to pack.

Carry-on packing list

Travel wallet, passport holder, toiletry bag, tsa-approved liquids bag and compliant containers, prescription medications, luggage tag, travel pillow, packing cubes, tech organizer, zippered pouches and reusable silicone bags, hand sanitizer, wired earbuds or headphones, e-reader or a great book, travel adapter/converter, travel blanket, travel first-aid kit, reusable water bottle, activities or games, foldable tote, light jacket, extra shoes, change of clothing.

Protect your credit cards and cash with an RFID wallet like the Travelon RFID Blocking Single Zip Wallet , which prevents scammers from wirelessly stealing your personal information. This travel wallet is especially useful since it can also hold most smartphones.

If you're traveling internationally, an option like the TIGARI Passport Holder can protect your travel document and make it easy to locate in your carry-on bag. You'll need access to your passport at airport security, when you board the plane and when you're filling out entry forms, so keep the passport holder as well as a pen within reach. Once you arrive at your destination, put the passport wallet somewhere safe at your lodging or – if you feel inclined to keep it with you – stow it in your travel purse, belt bag or backpack to ensure it's safe while you explore.

Read: The Top Passport Wallets

Young woman showing cosmetics permitted in carry-on baggage. Close up of hands.

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Pack your toiletry bag in your carry-on so you can easily freshen up and so that you'll have essentials like toothpaste and deodorant in the event your checked luggage is lost in transit. Also consider packing toiletries that are useful for travel (particularly the dry air on planes), even if they're not part of your daily routine at home.

U.S. News senior travel editor Marisa Méndez recommends including a facial moisturizer and a body lotion in your toiletry bag. "My skin always dries out on flights and it's nice to have something to soothe my skin," she says.

"I always love having facial spray to freshen up after the flight," says Elizabeth Von Tersch , also a senior travel editor at U.S. News. She always keeps one in her purse. " Mario Badescu and Evian are great." These facial sprays help to moisturize your skin after the drying environment on a plane or give you a little midday pick-me-up.

When packing your carry-on bag for a flight, you'll want to have a clear quart-sized bag that meets Transportation Security Administration guidelines for liquids and gels. Some Dopp kits or toiletry bags include a removable bag for travel-size liquids, or you can buy this reusable TSA-approved clear bag on Amazon . Put any liquids or gels you're traveling with in this bag, including shampoo, lotion, liquid makeup items and hand sanitizer.

Keep in mind that all liquids and gels must be in travel-size bottles or containers measuring 3.4 ounces or less. Remember: You'll need to remove this clear quart-sized bag from your carry-on bag at security, so consider packing it in an external pocket or an easy-to-find spot in your carry-on suitcase. To learn more about TSA regulations, consult our article about what is allowed in a carry-on .

Never stow prescription medications in checked baggage : If luggage is lost or delayed, replacing these medications while traveling can be extremely challenging or even impossible. If you take multiple medications, consider a travel pill sorter like the EZY Dose Pill Organizer , available for about $5 on Amazon.

Suitcase with blank Luggage Tag

Even if your carry-on has a coordinating identification tag, consider purchasing a unique luggage tag that will help it stand out. This is especially useful in the (common) event you have to gate-check your carry-on due to limited space in the overhead bin, and then locate it on the cramped jet bridge post-flight.

Resting throughout your journey can help you feel refreshed when you reach your destination and make the time pass a little quicker. But nothing can (literally) cramp your style like a stiff neck from sleeping wrong. Choose a comfortable neck pillow for travel like the top-rated Cabeau Evolution S3 or the MLVOC Travel Pillow (less than $30 on Amazon).

Packing cubes aren't just for organizing clothing and shoes. Maximize space in your carry-on bag with these handy travel compartments . While Eagle Creek's PACK-IT line features the top-rated compression packing cubes on the market, many travelers also swear by the Veken Packing Cubes , which are usually available for $20 or less on Amazon.

It's easy to let your charging cords get lost at the bottom of your bag or get your headphones tangled somewhere in your tote. A handy tech organizer with zippered compartments and sections for specific cords, such as the BAGSMART Tech Organizer, can help reduce tangled messes (and the need for you to search for your essentials in a tight airplane cabin).

Smaller than packing cubes, zippered pouches and silicone bags like the Stasher Silicone Reusable Storage Bags are perfect for storing everything from snacks to scrunchies. If traveling with family, consider different colored pouches for each traveler's items so you can easily tell them apart without removing everything from the bag.

Gotta be clean for breakfast

Let's face it – traveling can introduce your body to a host of unwanted germs. Carrying a bottle of travel hand sanitizer will keep your hands clean on the go, even if there's not a bathroom nearby. To disinfect surfaces like airplane tray tables, arm rests or tables, consider having a pack of disinfecting wipes at your disposal as well.

During a flight, the low humidity and high altitude can have a drying effect on your skin and lips. To combat the dry air, consider packing a hydrating lip balm like this new stick option by Aquaphor . What's more, if you choose a balm over a liquid moisturizer, you won't need to store this product in your clear TSA-approved liquids bag.

Bluetooth and wireless headphones are great, but when you're flying they aren't always compatible with airplane entertainment systems. If you're planning to watch a movie (or maybe just tune out your seatmates), buy some inexpensive wired earbuds like this well-rated set by Jogteg . Alternatively, you can purchase an AirFly ($35 or less on Amazon), which wirelessly transmits audio via Bluetooth.

Read: The Top Travel Accessories, Chosen by Our Editors

Having a book or magazine in your carry-on bag is always a good idea. Whether you encounter a delayed flight, a long layover or a plane with less than stellar in-flight entertainment, a good book will help pass the time.

On everything from red-eye flights to international jaunts, a good eye mask can block out light from overhead, the seatback screens and plane windows. The Nodpod Sleep Mask is especially relaxing since it's weighted.

"Even if you plan to grab a bite at the airport or on the plane (if that's an option), pack some snacks," says Amanda Norcross , content and SEO strategist for travel at U.S. News. "Flying is unpredictable and stressful for many travelers, and 'hanger' only makes things worse." Also put chewing gum in your carry-on to freshen breath and help with ear popping.

It's not always easy to find a charging station at the airport, and there are restrictions when it comes to packing batteries in your carry-on baggage for any flight. One option that meets Federal Aviation Administration guidelines is the Anker 537 Power Bank (PowerCore 26K for Laptop) . This device can charge a laptop, smartphone or tablet quickly, to keep your devices running even on a long flight.

A woman's hand holds a travel adapter on white background.

For international travel – since different countries use different plug shapes – packing a universal adapter or converter will enable you to charge your devices and other electronics. Before purchasing, consider what your needs will be, especially regarding the shape of the wall outlet plugs and the voltage of the countries you'll be visiting.

A travel adapter such as the EPICKA Universal Travel Adapter on Amazon makes plugs from the U.S. fit into electrical outlets around the world, whereas a travel converter like the GEARGO 230W Voltage Converter converts the electricity voltage. If you're traveling overseas from the U.S., you'll need both of these devices to use electronics like laptops, curling irons and hair straighteners (unless your device is dual voltage, like the BaBylissPRO Nano Mini Straightening Iron ).           

Whether you're traveling to a cooler climate or looking to stay cozy on a chilly flight, a comfy blanket can make all the difference. The Travel Blanket from Away has thermoregulating technology, snaps to connect a travel pillow and pouches to tuck your feet. What's more, it folds up into a handy carrying pouch when not in use. For a more affordable but still well-rated option, check out the EverSnug Travel Blanket .

For minor injuries like blisters from new shoes or unexpected cuts and scrapes, pack a first-aid kit with Band-Aids and triple antibiotic ointment like Neosporin in your bag.

Close up shot of an Indonesian woman with face mask opening the cap of her reusable plastic water bottle, ready to drink. She's trying to stay hydrated during long haul flights amidst Covid-19 pandemic.

Staying hydrated while traveling is a must. Pack a reusable water bottle like the Corkcicle Canteen Triple Insulated Stainless Steel Water Bottle to fill up at the airport before your flight and refill throughout your travels. Even better – an insulated bottle will stay cold for hours.

Whether it's a long flight or layover (or maybe you just need a good distraction), having some activities like a miniature coloring book and mini colored pencils or small packable games can be really useful.

"I took a small coloring book and a small set of pencils on a flight once and it was life-changing," Méndez says. U.S. News digital producer for travel Leilani Osmundson says she and her husband love to bring a deck of cards and portable two-player games to pass the time.

For day trips, picnics, carrying an extra pair of shoes or anything in between, a lightweight reusable bag like the Lug Packable Tote Bag is a helpful addition to your carry-on. It'll save on single-use plastic bags and provide extra space for unexpected purchases.

For added comfort and cleanliness, consider a reusable airplane seat cover, like this one by SeatRx . Constructed from breathable materials, these seat covers are machine-washable, have a universal fit and come with a storage pouch.

Read: Can I Use My Own Airplane Seat Belt Extender?

"I typically wear a lightweight jacket on the plane to free up space in my carry-on," says Norcross. "If the plane is too warm, I can easily stuff it under the seat in front of me with my backpack." If you're in need of a simple yet effective packable jacket , check out the Amazon Essentials Puffer Jacket .

Flying and walking can cause feet to swell, while some travels may take you to a completely different climate. Packing an extra pair of shoes in a water-resistant packing cube, or within a designated shoe compartment in a weekender bag, keeps other carry-on contents clean and gives you footwear options.

Read: The Top Walking Shoes for Travel

Whether your coffee spills off your tray table or you lose your checked baggage, an extra outfit is handy to have. Pack a versatile outfit (including underwear) into your carry-on bag so you have a backup option, or perhaps have your swimwear and flip-flops ready to head directly to the beach.

Read: Beach Packing List Essentials

Whether you want to change into a comfy pair of ankle socks to nap, or you got caught in the rain on the way to the airport and now have wet socks, having a change of socks can be useful. For maximum comfort, consider compression socks for travel , which can stimulate circulation to help reduce leg swelling caused by flying or sitting for extended periods of time.

What not to pack in a carry-on bag

When packing a carry-on bag or suitcase, it's important to note that some items are prohibited on all flights, due to Federal Aviation Administration regulations. The prohibited list includes aerosol products (such as anti-static spray or pepper spray), lithium or lithium-ion batteries, firearms and ammunition, flammables, and explosives. For more details on what you can and can't pack in your carry-on, visit the TSA's What Can I Bring? and the FAA's Pack Safe websites.

Why Trust U.S. News Travel

Rachael Hood loves to see how much she can fit in her carry-on bag. She always brings a few snacks, a good read and little luxuries to make the journey comfortable. Hood used her personal travel experience, along with her retail background and research expertise, to write this list.

You might also be interested in:

  • The Top Luggage Brands
  • Carry-on Luggage Sizes by Airline
  • What to Do If Your Flight Is Canceled
  • The Best Travel Insurance Companies

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Hand Sanitizers

TSA allows hand sanitizer in a passenger carry-on bag under the 3-1-1 liquids rule. These are limited to travel-size hand sanitizer containers that are 3.4 ounces (100 milliliters) or less per item.  The FAA limits the total amount of restricted medicinal and toiletry articles, including aerosols, in checked baggage. The total aggregate quantity per person cannot exceed 2 kg (70 ounces) or 2 L (68 fluid ounces). The capacity of each container must not exceed 0.5 kg (18 ounces) or 500 ml (17 fluid ounces). See the FAA regulations for more information.

Permitted aerosol release devices (button/nozzle) must be protected by caps or other suitable means to prevent accidental release.

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Stanley Just Dropped New Tumblers and Travel Bottles in Spring-ready Colors — Only at Target

Shop the Sunshine Vibes collection before it sells out.

travel carry on ounces

We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation. Learn more .

Travel + Leisure / Daisy Rodriguez

No water bottle has gained the level of fame that Stanley’s 40-ounce Quencher Tumbler has, making it a highly sought-after vessel that sells out quickly. Rightfully so — the stainless steel tumbler keeps water incredibly cold for hours, famously fits in the cup holder of your car, and comes in so many seasonal colors. 

And today, the brand just dropped its exclusive Sunshine Vibes Stanley collection at Target, which includes the shopper-favorite brand in bold, spring- and summer-ready hues. Whether you’re in the market for a new water bottle or want to add some fun new colors to your on-the-go collection, shop the new launch now while products are still in stock.    

Stanley 40-Ounce Quencher Tumbler

The brand’s most popular water bottle, the 40-Ounce Stainless Steel H2.0 Flowstate Quencher Tumbler , now comes in four new colors: amethyst, aqua, sunshine, and summer plaid, a pattern which consists of its other shades. Shoppers love the water bottle for road trips, workout classes, and long flights, and the new one features the same lid that allows you to sip directly from the bottle, use a straw, or secure it closed to prevent splashes. 

Stanley 20-Ounce Stainless Steel IceFlow Flip Straw Tumbler

While the larger tumbler is designed to be an on-the-go water bottle, Stanley has multiple travel-friendly bottles that are also included in the new color drop. If a smaller tumbler makes more sense for you, grab the 20-Ounce IceFlow Flip Straw Tumbler in aqua, cobalt, marigold, and poppy. And for a water bottle that can be thrown in your bag without fear of leaking, opt for the 20-Ounce All Day Slim Bottle , which comes in four striped patterns and has two openings at the top to fill it easily with water and ice.

Stanley 20-Ounce Stainless Steel All Day Slim Bottle

In addition to the updated colors, Stanley’s new launch also includes a patio collection featuring pitchers , flasks , coolers , and large-capacity drink dispensers . If summer travel looks like trips to the beach or camping in the mountains, the 16-Quart Easy-Carry Outdoor Cooler is an ideal option to hold up to 21 cans, and it comes in three colors: azure, lilac, and pomelo. 

Stanley 16-Quart Plastic Easy-Carry Outdoor Cooler

If past Stanley collections are any indication, this new launch is likely to sell out while you’re reading this. Keep scrolling through for more color options, and snag your favorites from Stanley’s Sunshine Vibes Collection while they’re still in stock. 

Stanley 10-Ounce Stainless Steel Everyday Go Tumbler

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IMAGES

  1. The TSA Liquids Rule for Carry-on Bags (3.4 ounces)

    travel carry on ounces

  2. Tsa Carry On Bag Size Requirement

    travel carry on ounces

  3. A Carry-on Luggage Size Guide by Airline

    travel carry on ounces

  4. Everything You Need to Know About TSA Liquid Rules

    travel carry on ounces

  5. Liquids Allowed in Carry-On Luggage

    travel carry on ounces

  6. It’s time to convert to carry-on: LuggageHero ranks airlines by space

    travel carry on ounces

VIDEO

  1. AVOID CARRY-ON MISTAKES #travellers #travel #traveltips

  2. Concealed Carry Ounces Matter

  3. What’s in my travel carry-on bag! #travel #dailyvlog #carryon #flights

  4. What's in your carry-on? You'd better check!

COMMENTS

  1. Liquids Rule

    Liquids Rule. You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item. Placing these items in the small bag and separating from your carry-on baggage facilitates ...

  2. The TSA 3-1-1 Rule: Liquids in Carry-on Bags

    The 3-1-1 Rule refers to three core components that govern how many liquids you can bring in your carry-on bags: Each liquid must be in a 3.4-ounce or less container ("3"), all containers must be placed inside one clear quart-sized plastic bag ("1"), and each passenger is only allowed one plastic bag ("1"). In sum, the 3-1-1 Rule states that ...

  3. How many ounces can you take on a plane?

    When packing a carry-on bag, one of the most important things to consider is how to pack liquids correctly.The TSA 3-1-1 rule is the gold standard for remaining within liquid limits, and it's quite easy to follow. All liquids must be within containers of 3.4 ounces (100 milliliters) or less, and they must collectively fit within one clear, zip-top bag that is one quart (32 ounces) or smaller ...

  4. TSA Carry-On Restrictions You Need to Know

    The TSA liquid rule — also known as the 3-1-1 rule (3 ounces, 1 bag per 1 person) — is straightforward: "You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and ...

  5. How Many Ounces Can You Carry On A Plane? (TSA Liquid Fl Oz Rules)

    There are 32 ounces in a quart but you won't be able to fill your plastic quart bag with 32 ounces of liquid. We estimate that you can for 7 or 8 travel-sized bottles in a quart bag. So it's a reasonable guess to say that you can bring roughly 25 total liquid ounces with you on a plane. The last part of the 3-1-1 rule states that you are ...

  6. TSA Liquid Rule: 10 Full-Size Liquids You Can Take Through Airport

    10 Full-Size Liquids You Can Actually Take Through Airport Security. From medications to baby formula—and live fish!—here is when you can break the 3-1-1 liquids rule. For the better part of ...

  7. TSA Liquid Limits: What and How Much You Can Carry On

    The TSA's liquid limit for carry-ons—known as the 3-1-1 rule—allows travelers to pack liquids, aerosols, gels, creams, and pastes under 3.4 ounces (100 milliliters) in their carry-on bags. Passengers are allowed up to one quart-sized bag per person, or roughly nine 3.4-ounce containers in a single quart-sized bag.

  8. Here's the 411 on the TSA's 3-1-1 liquids rule

    In short, the 3-1-1 rule is: Each liquid you bring through the TSA checkpoint must be in a 3.4-ounce or smaller container ("3"), all containers must be placed inside one clear quart-size plastic bag ("1") and each passenger is only allowed one plastic bag ("1"). Passengers wait in line at New York's John F. Kennedy International Airport (JFK ...

  9. Travel Tips: 3-1-1 liquids rule

    Travel Tips: 3-1-1 liquids rule. You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule. Select Filter.

  10. The TSA Liquids Rule for Carry-on Bags (3.4 ounces)

    The TSA liquids rule states that you can bring a quart-sized bag of liquids, aerosols, creams, gels, and pastes in your carry-on bag and through the airport security checkpoint. However, you are limited to containers that are travel sized and contain less than 3.4 ounces (100 milliliters) per item. Items that are in packages or bottles larger ...

  11. TSA Carry-On Size: Limits And Restrictions

    The 3-1-1 liquids rule limits your carry-on liquids, gels and aerosols to a maximum of 3.4 ounces (or 100 ml) per container. All containers together must fit inside a resealable quart-sized bag ...

  12. What is allowed in a carry-on bag: TSA rules

    Cooked meat, seafood, vegetables and other prepared meals and dishes are permitted as long as they do not exceed the 3.4-ounce liquid limit. If you're flying from Hawaii, Puerto Rico or the U.S ...

  13. TSA Liquid Rules Ultimate Guide (3-1-1 Explained) [2023]

    The "three" indicates that your liquids must be contained within a container no larger than 3.4 fluid ounces or (100 ml). (TSA uses 3.4 ounces because it's easier to remember but really 100 ml comes out to 3.3814 fluid ounces.) One of the biggest things that people get confused about is that the 3.4 ounce requirement applies to the size ...

  14. TSA Liquids Rule Explained: What Size Liquid Can You Bring on a Plane?

    In total, you can take 32 ounces (or 1 quart) of liquids on a plane. But as the containers themselves will take up space in the single quart-sized bag, you won't be able to take a full 32 ounces of liquids in your carry on. You will be able to bring about 25 ounces in total, in 7 or 8 travel-sized 3.4oz/100ml containers onto a plane in your ...

  15. How Many Ounces Can You Take On a Plane?

    According to their guidelines, you can bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag. Each container of liquid must be 3.4 ounces (100 milliliters) or ...

  16. Don't Get Grounded: Everything You Need to Know About Liquids in Your

    In particular, many travelers wonder how many ounces of liquids they can carry on a plane. Here, we'll tackle the TSA liquid rules for carrying liquids in carry-on luggage within the United States, exceptions to this rule, and tips on packing reusable travel containers so they don't make a huge mess.

  17. TSA Liquids Rule: The 411 on the 3-1-1 Limit

    So there you go, you are limited to one bag with as many 3.4 ounce containers as can fit into your carry-on. 3 = 3.4 ounce containers (you may not Carry-on larger containers with less than 3.4 ounces of liquid) 1 = 1 Clear Zip-Lock Bag (with as many 3.4 ounce containers as you can reasonably fit in) 1 = 1 Per Person (no exceptions)

  18. Will the U.S. End the TSA Travel-Size Liquid Rules?

    Passing through airport security in the U.K. is about to get easier and more streamlined, as U.K. officials announced that the rule mandating liquids in carry-on bags be 100ml (3.4 ounces) or less ...

  19. 28 Things You Should Always Pack in Your Carry-on Bag

    Put any liquids or gels you're traveling with in this bag, including shampoo, lotion, liquid makeup items and hand sanitizer. Keep in mind that all liquids and gels must be in travel-size bottles ...

  20. Airlines Are Coming for Your Carry-On Bags

    Travel. Carry On; Airlines Are Coming for Your Carry-Ons Carriers have gotten stricter about how many items you can take on board, no matter how small they are. Illustration: Dan Page ...

  21. The Best Travel-size Sunscreens of 2024, Tested and Reviewed

    T+L editors, writers, and expert product testers tried 20 tubes of sunscreen that meet the TSA liquid carry-on limit of 3.4 ounces. From lotions to sprays, we researched and tested the best mini ...

  22. Hand Sanitizers

    TSA allows hand sanitizer in a passenger carry-on bag under the 3-1-1 liquids rule. These are limited to travel-size hand sanitizer containers that are 3.4 ounces (100 milliliters) or less per item. The FAA limits the total amount of restricted medicinal and toiletry articles, including aerosols, in checked baggage.

  23. The Latest in Go Gear From the 2024 Travel Goods Show

    The Baseline Essential 22-inch Carry-On Spinner is the latest performer in the line and includes a built-in garment folder to keep clothes pressed and ready to wear. It checks in at $699. Cabeau. A known force for travel neck pillows and ... The tea comes as compressed black tea in which an ounce brews up to five gallons of tea—important when ...

  24. Stanley Just Dropped New Tumblers and Travel Bottles in Spring-ready

    If summer travel looks like trips to the beach or camping in the mountains, the 16-Quart Easy-Carry Outdoor Cooler is an ideal option to hold up to 21 cans, and it comes in three colors: azure ...

  25. Everest climbers will have to take their poop away with them, as Nepal

    With gear, food, supplemental oxygen, Sherpa guides and more, it costs upward of $35,000 to take on the mountain. But the world's highest peak has a poop problem, driven by the number of ...