In order to overcome your Fear of Flying you need to realize that control begins with your feelings. That your thoughts control your feelings, your feelings control your actions and your actions control events.
When you change your thinking to positive, you can be in control. So when you are about to fly, you need to tell yourself that you feel as safe and as normal as you feel in a car.
If you can get into a car then feeling safe, you can transfer that feeling when travelling on a plane. You can do this by thinking the same thoughts and telling yourself the same things.*