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. Can Vaping Set Off a Smoke Alarm? Here's What You Need to Know What Do Vape Detectors Look Like? A Complete Overview A man named Peter Nguyen claims a flight attendant forced her way into an airplane bathroom after he took one puff of his vape. According to the FAA, vaping on a plane