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. Do Smoke Detectors Detect Vape? A Guide About Smoke Detectors are Set Off by Vapes UPENDS Defiant Delta Passenger Vapes On Jet Bridge, Prioritizes Smoke Over Freedom View from the Wing What Are Vape Detectors [& How to Avoid Triggering Them] Flight attendant explains what really happens if you smoke or vape on a plane 7NEWS