What Is the 3-1-1 Rule for Liquids in Carry-On Luggage?
Learn about the 3-1-1 rule for carrying liquids on flights: size limits, packaging, and airport security requirements.
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The rule for liquids in carry-on luggage is known as the 3-1-1 rule: liquids must be in 3.4 ounces (100 milliliters) or smaller containers, all containers must fit in one clear, quart-sized plastic bag, and each passenger is allowed one bag. This rule applies to pastes, creams, gels, and aerosols as well. Make sure to have your bag of liquids easily accessible, as you'll need to place it in a separate bin for screening at the airport security checkpoint.
FAQs & Answers
- What is the 3-1-1 rule for liquids on planes? The 3-1-1 rule means each liquid container must be 3.4 ounces (100 milliliters) or less, all containers fit in one clear quart-sized bag, and you are allowed one bag per passenger.
- Are aerosols and gels included in the liquids restriction for carry-ons? Yes, the 3-1-1 rule applies to aerosols, gels, creams, and pastes, treating them the same as liquids when packing carry-on luggage.
- How should I prepare my liquids bag for airport security? Place your quart-sized bag of liquids in an easily accessible spot in your carry-on to remove and place it separately in a bin for screening.