You should always carry your vape kit and vape liquid (up to 100ml) in your hand luggage when flying. This allows the security and customs officials to ask you about them if they have any questions regarding your vape. We recommend you don't have any liquid in your tank because it will leak out when the air pressure changes on your flight. It is always worth checking your holiday destinations policy on vaping to ensure it is legal where you are headed! You cannot use your vape on a plane.