It's the reverse for me - I have no problem driving long distances, but a horrible fear of flying.

One website that has helped me is fearofflyinghelp.com . It's written by an airplane captain who has a good grasp of why people are afraid. Unfortunately, last time I flew was very traumatizing for me, and I haven't been able to get on a plane since. I'm going to have to soon, because it's so necessary, but every time I think about getting on a plane again my stomach turns.