You can bring liquids in your carry-on luggage on a plane under the following general rules as of 2025:
- Liquids must be in containers of 100 milliliters (3.4 ounces) or less. Containers larger than 100 ml are not allowed, even if they are only partially filled
- All these containers must fit into one transparent, resealable plastic bag with a maximum capacity of 1 liter (quart-sized bag). Only one such bag is allowed per passenger
- The bag must usually be removed from your carry-on and screened separately at security, unless you are flying from certain airports with new 3D scanners where liquids can stay in your bag (e.g., Gatwick, Birmingham, Newcastle)
- Exceptions exist for prescription medications, baby food, and infant nourishment, which can be carried in larger quantities but must be declared and may require additional screening
- Liquids purchased after security, such as duty-free items, can be carried in any amount as long as they remain sealed in the security bag with a receipt
- For checked baggage (suitcases), there are generally fewer restrictions on liquid quantities, but flammable or hazardous liquids remain prohibited
Note that some airports and regions are transitioning to new scanning technology that may eventually remove the 100 ml limit and allow up to 2 liters per passenger in carry-on, but this is not yet fully implemented and some previous plans were delayed or rolled back
. In summary, the standard current rule for carry-on is:
- Maximum 100 ml per container
- All containers fit in one 1-liter transparent resealable bag
- One bag per passenger
Larger quantities must go in checked baggage or qualify for exceptions like medication or baby food
