How much liquid can you bring on a plane 2023?

Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.



Looking back at 2023, the 3-1-1 rule was the global standard: liquids, gels, and aerosols had to be in containers of 3.4 ounces (100ml) or less, all fit into a single one-quart clear, zip-top bag. A supportive peer "tech" update: as we move through 2026, many airports (especially in the UK and select US hubs) have installed CT scanners that allow you to bring up to 2 liters of liquid and keep them inside your bag. However, because this technology isn't universal yet, the safest bet in 2026 is still to follow the 100ml rule unless you are certain your departure and arrival airports have the new scanners. Exceptions always apply for "essential" liquids like baby formula, breast milk, and liquid medications, which can be in larger quantities but must be declared to security for manual inspection.

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The TSA permits you to carry any liquids, gels and aerosols in containers that hold up to 3.4 ounces. It's called the 3-1-1 rule because your liquids must be no more than 3.4 ounces (that's the 3), they have to fit into 1-quart bags (there's the 1) and you're only allowed one (that's the final 1) of the bags.

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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.

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Is toothpaste considered a liquid by the TSA? Yes, toothpaste must adhere to the 3-1-1 rule for liquids and gels. Toothpaste can be brought through TSA security in your carry-on as long as it is 3.4 ounces (100 milliliters) or less and placed in a 1-quart bag.

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We recommend packing all liquids, gels, and aerosols that are over 3.4 oz or 100 ml in your checked baggage, even if they are in a secure, tamper-evident bag. Liquids more than 3.4 oz or 100 ml not in a secure, tamper-evident bag must be packed in checked baggage.

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But what are they, and is deodorant considered a liquid when flying? Deodorant can be considered a liquid when flying if it is in a gel or aerosol form. If your deodorant is solid, though, the TSA will let you bring a standard stick of solid deodorant with you in your carry-on luggage.

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Safety Razors: Because the razor blades are so easy to remove, safety razors are not permitted in your carry-on luggage with the blade. They're fine to pack in your carry-on without the blade. The blades must be stored in your checked luggage. The same applies for straight razors.

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Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.

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London City Airport has scrapped the 100ml liquid limit by using high-tech scanners which also allow electronics to be kept in hand luggage at security.

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It's one of the most frustrating things about traveling by plane, but at two U.K. airports it is no longer necessary to follow the rule that all liquids must be in containers less than 100ml—and like an increasing number of airports around the world, all other U.K. airports will follow, with a deadline of June 2024.

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What does this mean for travelers? Travelers can expect to see the complete removal of the 100ml rule at major airports by 2024. Eventually, the carry-on liquid limit at these airports will be extended to 2 liters (0.53 gallons). This new limit is already in force at some major airports.

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These scanners mean that the 100ml limit on liquids no longer applies, and passengers can travel with larger volumes of liquids as long as they fit inside their cabin bags.

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containers must hold no more than 100ml. containers must be in a single, transparent, resealable plastic bag, which holds no more than a litre and measures approximately 20cm x 20cm.

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The Bottom Line. Chapstick, lipstick, and solid lip balms are not considered liquids by the TSA and can be thrown into your handbag or carry-on without any issues. Liquid lip gloss, jars of petroleum lip balm, and other lip care liquids must be placed in your clear liquids bag for security checkpoint screening.

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You can carry sunscreen in your cabin bags. You will need to limit the volume to equal or less than 100 ml and place them inside a resealable plastic bag. In case travel-friendly containers do not offer you enough sunscreen, it is fine to bring large amounts if you pack them inside your hold luggage.

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Disposable razors, replacement blades, and electric razors can go in either your carry-on or checked baggage; if you have a safety or straight razor, you can pack it in your carry-on — but you must remove the blades first and pack them in one of your checked bags.

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Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

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But if you're new to electric toothbrushes, you may wonder, “Can I pack an electric toothbrush in a carry-on?” The Transportation Security Administration (TSA) says yes. Electric toothbrushes can be packed in carry-on or checked luggage.

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Stick deodorant is fine in any size. Well, almost any size… Powders and crystals are good to go as well. Spray, Gel, Liquid, Cream, Pastes, and Roll-On deodorants need to be in containers no larger than 3.4 ounces and placed in a clear quart-sized baggie.

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The official answer, according to the TSA's blog, is that you can bring solid stick deodorant “of any size” in your carry-on luggage. In other words, it qualifies as a solid rather than a gel or liquid.

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