Liquids & gels

Can I bring mouthwash on a plane?

Quick rules for flying with mouthwash in carry-on and checked baggage. Verdicts and conditions across the major aviation regions below.

🇺🇸 United States (TSA)

Carry-on
With limits
Checked bag
Yes

Counts as a liquid. 100 ml in carry-on, full size in checked.

🇪🇺 European Union (EASA)

Carry-on
With limits
Checked bag
Yes

≤ 100 ml in carry-on; any size in checked. No regional restriction.

🇬🇧 United Kingdom (CAA)

Carry-on
With limits
Checked bag
Yes

≤ 100 ml in carry-on; any size in checked.

🌎 Latin America

Carry-on
With limits
Checked bag
Yes

≤ 100 ml in carry-on; any size in checked.

🌏 Asia (ICAO / IATA baseline)

Carry-on
With limits
Checked bag
Yes

Liquid: ≤ 100 ml in carry-on liquids bag; any size in checked. Some Muslim-majority destinations (Saudi Arabia, Iran, Brunei) restrict alcohol-containing mouthwash — switch to alcohol-free formulas.

🇦🇺 Australia & Pacific (CASA)

Carry-on
With limits
Checked bag
Yes

≤ 100 ml in carry-on; any size in checked. No regional restriction.

Also known as: listerine
⚠️ Airline rules vary and change frequently. This page summarises common guidance — always confirm with your specific airline before flying, especially for international travel.
Last reviewed: May 2026
Regional authorities: TSA ↗ · IATA / ICAO ↗ · CASA AU ↗ · EASA ↗ · UK CAA ↗ · IATA DGR ↗
⚡ Check airline-specific rules