For: travelers departing Incheon on an international flight. Information checked: 9 November 2026. Permission to carry a device on a flight does not mean it can be imported or possessed at your destination.

Incheon Airport’s restricted-items FAQ says electronic cigarettes are allowed only in carry-on, not checked baggage. First check your actual device with every operating airline and the rules of every relevant destination and transit jurisdiction. Some airlines prohibit devices entirely; if in doubt, confirm before leaving.

Check the complete itinerary

  • Destination and transit: Consult official customs and health authorities for the places on your route. For example, Singapore Customs lists electronic cigarettes and components among prohibited imports. Do not assume the same treatment for every transit itinerary.
  • Airline: Ask each operating carrier about your device, spare batteries, quantities, protection and storage. Airline rules can be stricter than the airport FAQ.
  • If unclear: Ask the carrier and relevant authority before travel; do not assume that another traveler’s experience applies to your route.

Separate device, batteries and liquid

Protect the device from accidental activation. Check the airline’s battery-capacity and quantity rules and protect spare battery terminals from short circuit. If staff ask to check your cabin bag at the gate, tell them about the device and batteries and follow their instructions to remove items that must stay in the cabin.

Refill liquid has separate international security-screening and destination rules. Check the airport’s current liquid guidance for your container and ask about liquid-filled pods or integrated tanks; do not assume a device rule automatically covers its contents.

The International Air Transport Association’s battery guide says electronic cigarettes must not be used or charged on board and notes that airline policies can vary. Follow the crew’s instructions and alert them promptly if a battery becomes hot, smokes or smells unusual.

Next, review the power-bank guide for other rechargeable items and check your flight’s terminal. We have not tested your specific device, airline, transit or destination.