Know before you fly! Wondering which liquids you can bring on board without checking them in?
SAWASDEE by AOT summarizes the updated regulations effective in 2025, along with practical tips to help you pack liquids correctly, pass security screening smoothly, and travel with peace of mind from check-in to arrival.
Container Size
Each container carrying liquids must not exceed 100 milliliters (ml) or 3.4 ounces (oz), and the volume must be clearly labeled on the packaging.
Even if the liquid inside is less than 100 ml, you cannot bring it on board if the container itself is larger than the permitted size.
Total Quantity
There is no limit to the number of containers you can carry, but the total combined volume must not exceed 1,000 milliliters (1 liter) per passenger.
How to Pack
All containers must be placed together in a clear, resealable plastic bag no larger than 20 x 20 cm.
Each container should be clearly labeled with the type of liquid, and must be easy to remove for inspection at the security checkpoint.
Liquids Not Allowed on Board
- Flammable liquids such as thinner or high-concentration alcohol
- Aerosols that contain hazardous materials or high-pressure
- Alcoholic beverages with an alcohol content higher than 70% (140 proof) are strictly prohibited on board, both in carry-on and checked baggage.
- Toxic or corrosive substances such as acids, cleaning agents with corrosive properties, and pesticides are also not allowed.
Examples of Liquids That Are Exempted
1. Baby milk or food
Allowed when traveling with an infant, in a quantity that is reasonable for the duration of the flight.
2. Liquid medications
Allowed even if over 100 ml, but must be accompanied by a doctor’s certificate or a clear prescription label.
3. Liquids purchased from duty-free shops
Permitted even if over 100 ml, provided they are sealed in transparent bags by the store and accompanied by a receipt.
Did You Know?
Cosmetics with a creamy or gel-like texture, such as lip gloss, mascara, and cushion foundation, are also considered liquids and must follow the same quantity restrictions.
Old vs. New Regulations (Updated 2025)
| Old Rules | New Rules |
| Up to 100 ml | Up to 100 ml, with volume clearly indicated |
| Up to 1,000 ml per person | Up to 1,000 ml per person |
| No need to pack together | Must be packed in a single sealed transparent bag |
| Liquids allowed in general | Type of liquid must be clearly specified |
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