Can You Carry a Vape on a Plane? UK Rules Explained (2026) Smoking or vaping is not allowed on any flight to or from the United States. You can carry an e cig in your hand luggage, but you cannot use it in the cabin. Consequences of Smoking in Airplane Lavatories Can Airplane Smoke Detectors Detect Vape (in 2024) ? Vape Detector Best Way to Take Weed Pen Through TSA and Customs Do Vapes Set off Smoke Alarms?