a person who travels a lot by plane on commercial flights, especially when that person is a member of a scheme that gives rewards to people who travel by plane a lot He's also a frequent flyer, travelling thousands of miles to speak to entrepreneurs throughout the world. 他还是飞行常客，千里之外与世界各地的企业家交流。 As a frequent flyer, I have experienced my share of turbulent take-offs and rough landings. 作为一名常旅客，我经历了我的动荡起飞和粗糙着陆。