Carry-On Liquids & Toiletries Checklist

Liquids in carry-on luggage are one of the most common causes of airport security delays. Travelers often wonder about carry-on liquid limits, travel size liquids, toothpaste in carry-on bags, deodorant sprays, aerosols on planes, or what liquids are allowed on a flight.

This checklist helps you verify that liquids and toiletries in your carry-on are packed in a way that generally meets airport security expectations. Instead of memorizing rules or worrying about what's often referred to as the airport 100ml rule, this checklist focuses on practical checks. You can quickly confirm liquid size for carry-on items, separate liquids from solids, and decide whether toiletries belong in your carry-on or checked luggage.

Use this checklist before packing or just before leaving for the airport. It is designed to be reusable for different trips, airlines, and airports, and helps reduce uncertainty around liquids on planes without relying on airline-specific or country-specific rules. For travel document requirements before you fly, see our separate guide.