Passengers on a recent flight from Phoenix to San Francisco witnessed an unusual mid air standoff after a flight attendant confronted a passenger accused of vaping in the aircraft bathroom. The traveler, later Can You Take Vape on a Plane: Airplane Rules & Regulations Any form of smoking is prohibited in all PAL domestic and international flights. In compliance with Civil Aviation Regulations (CAR) Board Resolution No. 8.9.1.8, PAL enforces a strict ban on smoking Can E cigarettes Be Brought On The Plane? vaping on the flight : r unitedairlines