Folks, do not attempt to carry-on a "torch" lighter, as it is considered a potential weapon. You can get by with it in your checked luggage but from my experience, if it is in you carry-on you can expect a 100% confiscation. Most airports will still let you carry-on a regular butane lighter, i.e., the BIC variety or a variation thereof, but I've had to leave my torch lighters with lost and found until I return to collect it. BTW if you have a fairly tight time frame to catch a flight and you have your torch lighter on your person or in your carry-on, you can save a lot of time by leaving it with lost-and-found prior to going through the security check gate to make you flight. Speaking from personal experience......