What Really Happens If Someone Were To Vape On A Plane Will Vaping Set Off Fire Alarms? 2026 Safety Guide E Cigarette Direct Can a Vape Set Off a Fire Alarm? What You Should Know Why You Should Think Twice About Vaping on a Plane: 'Don't Be This Person' Newsweek 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 You Bring a Vape on a Plane Under 21 BOOST!