Vape Sets Off Fire Alarm: How Do Vape Detectors Work? Vapesourcing Do Vapes Set Off Smoke Alarms? Vuse UK 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 Devices Set Off Smoke Alarms? Smoker warning over item TSA has banned from checked luggage it will only be allowed on plane if 'watt' limit followed