Passengers are permitted to carry on liquids, gels and aerosols in 3.4 ounce, or smaller, containers. You may not bring a larger container that is partially filled, such as half of a bottle of hairspray or denture cream. Larger bottles and containers must be placed in the luggage you check with the airline.
Each passenger is permitted to carry on one quart-size, clear plastic bag with a zip-close top. All of your 3.4 ounce containers must fit securely inside the singular plastic bag. The zipper top should be closed.
You must be able to access your sealed plastic bag when passing through security, and present it for inspection. The bag will pass through the X-ray machine for screening.
Certain larger amounts of liquids, gels or aerosols are permitted in a traveler's carry-on luggage. These include prescription and over-the-counter medicines, baby formula, breast milk and other necessary liquids for small children. Travelers must present the liquids to security for an X-ray screening. Frozen items may also pass through security as long as they are completely frozen at the time of inspection. Items purchased after passing through the security checkpoint are permitted on the aircraft.
