Can you bring a vape on a plane? TSA rules

The short answer

Yes, you can bring a vape or e-cigarette in your carry-on. TSA says electronic smoking devices are allowed only in carry-on bags, so do not put them in a checked bag. E-liquid in your carry-on must follow the 3.4 oz (100 ml) rule.

Carry-on only

TSA lists electronic cigarettes and vaping devices as allowed in carry-on bags (with special instructions) and not allowed in checked bags. TSA says electronic smoking devices are allowed only in carry-on baggage.

Prevent accidental activation

TSA says passengers must take effective measures to prevent the heating element from switching on by accident while the device is being transported. TSA points to the FAA regulations for examples of effective measures.

Battery limits

• Each lithium ion battery must not exceed 100 Wh.
• For lithium metal batteries, the limit is 2 grams of lithium content.
• Check with your airline about any limit on the number of devices you can carry for personal use.

E-liquid

TSA lists e-liquids as allowed in carry-on bags in containers of 3.4 oz (100 ml) or less, and also allowed in checked bags. Carry-on liquids follow the usual liquids rule. The final decision always rests with the TSA officer at the checkpoint.

Sources: TSA: Electronic Cigarettes and Vaping Devices, TSA: E-Liquids. Read 5 November 2026. Rules and fees change, so check the official page before you travel.

Frequently asked questions