Fear of flying is simply a learned response. The only fear a baby is born with is that of loud noises. How you learned your fear of flying is totally irrelevant in terms of curing the 'fear' response. At some point you simply got very scared about flying. Maybe there was a lot of turbulence during a flight, maybe the plane spent ages flying in a holding pattern above an airport waiting for permission to land and you began to wonder how much fuel was left; perhaps you saw pictures of an airline crash on television, or in a newspaper. Many people don't even remember how the flying phobia started.
Mindset Hypnotherapy is normally able to elevate the Fear of flying after 2 - 3 sessions