Can you take 100 ml carry-on luggage?

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.



In 2026, the "100 ml rule" for liquids in carry-on luggage is in a state of transition depending on your departure airport. Many major international hubs (such as London Heathrow, Dubai, and several major EU airports) have now installed advanced CT (Computed Tomography) security scanners. At these specific "Next-Gen" checkpoints, the 100 ml limit has been abolished, allowing passengers to carry liquids, gels, and aerosols in containers up to 2 liters without removing them from their bags. However, many smaller or regional airports still utilize older X-ray technology where the strict 100 ml (3.4 oz) limit per container still applies, and all containers must fit into a single clear, quart-sized plastic bag. Because the global rollout of CT scanners is not yet 100% complete in 2026, the safest rule for multi-leg journeys is to stick to the 100 ml containers unless you have confirmed that every airport on your itinerary has upgraded its technology.

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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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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.

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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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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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Please remember to pack your 10kg bag appropriately, e.g. with no liquids over 100ml. All customers with a carry-on bag with priority boarding (either purchased or included) must check in online or via the App.

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Why was the 100ml liquids rule originally brought in? Liquids in quantities larger than 100ml have been verboten on commercial air travel since 2006 – and like so many flight regulations introduced in the decade following 9/11, it was originally an anti-terrorism measure.

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Liquids, aerosols, and gels must be stored in containers that can hold 3.4 ounces (100 millilitres) or less. In addition, you must place these containers in a single, clear, plastic, and quart-sized bag. You must present the bag for inspection at the security gate.

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Hand luggage and hold luggage Liquids carried in the aircraft cabin such as aerosols, drinks, toothpaste, cosmetic creams or gels must be carried in a transparent plastic bag - maximum capacity 1 litre - and no container may hold more than 100 ml. Liquid containers larger than 100 ml must be placed in checked baggage.

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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 TSA's “3-1-1 rule” clearly states that passengers can only travel with liquids, gels and aerosols in carry-on luggage in small containers that do not exceed 3.4 ounces (100 milliliters).

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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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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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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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The hand luggage allowance was soon relaxed, but the liquid ban remained – not just in Britain but in countries around the world. To this day, you cannot get through UK airport security checks with any liquids over 100ml in volume, and any that do meet regulations must be sealed in a transparent resealable bag.

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Sticking a foot under a luggage scale to get bags under the limit is becoming a viral travel hack. People on TikTok say they've tried this trick and gotten away with bringing a heavy bag on board. Others say using this travel hack could endanger airline staff and one's fellow passengers.

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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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