Why this matters

Vapes combine two regulated things in one device: a lithium battery and a smoking product. The battery side drives the strictest rule — checked baggage is completely off-limits, because vape batteries have a record of overheating, and a cargo-hold fire cannot be fought in flight. The smoking side adds a second layer: using one onboard is treated like lighting a cigarette, and several countries treat the device itself as contraband.

Getting this wrong ranges from losing the device at the gate to facing criminal penalties on arrival.

Restrictions

In the air, the rules are uniform worldwide:

  • Carry-on or on your person only. Vapes, e-cigarettes, and heated tobacco devices are banned from checked bags on every airline.
  • No use, no charging at any point on the aircraft. Take steps to prevent accidental activation — switch the device off or remove the cartridge.
  • Spare batteries follow standard lithium rules: cabin only, terminals taped or cased.
  • E-liquid is an ordinary liquid: 100ml containers in carry-on, larger bottles in checked baggage.

On the ground, the destination matters as much as the flight. Thailand bans vapes with penalties up to arrest; Singapore prohibits them; Australia tightly restricts vape imports. A device that is perfectly legal to fly with can still be seized — or worse — at customs.

What the official guidance says

The FAA's PackSafe guidance requires battery-powered e-cigarettes and vaporizers in carry-on baggage only, prohibits onboard use and charging, and requires protection against accidental activation. TSA enforces the same at screening, and if a cabin bag is gate-checked, the vape must come out and stay with you. Country-level bans are separate laws entirely — check your destination and any connection points before traveling with a vape.