I don't fly enough to be afraid of it. I'm anxious until I get back on flat, dry land, but it's not fear (unless you count my fear/ distaste for hordes of people being close to me.)
My fear that's a long similar line is heights that move. Mountains? I'm fine. Planes? Those heights don't bother me either (yes, the plane's moving, but I'm not afraid of the heights there)? Put me on top of a telephone pole, a tall skyscraper, or the St. Louis arch and watch me go screaming for the center of the room away from the windows and the swaying sensation. And you'd better not expect me to jump off or out of something perfectly good and stable either.