CIGARETTE LIGHTERS are now totally banned since last week on US flights (see 7 March ABTN). Unlike guns, knives and other dangerous items that a passenger cannot carry on in his pocket but may stow in checked luggage bags, lighters are prohibited from anywhere on an aircraft. Whilst the throwaway manufacturers initially complained in a very visible manner they should in fact benefit from the prohibition although one could argue that airport waste bins full of units illegal to travel could constitute even more danger. If you must have a smoke when you get off the ”plane you can have matches in your pocket.
http://www.dhs.gov/dhspublic/index.jsp