Does anyone know anything about those small airports for people with private plains? Maybe after hiding for a while you could force someone at guy point to fly you somewhere. But I'm not sure how far those things can go and this would seem to create another whole host of problems (what if he fights back, uses a code on the radio and what do you do with the guy once you land?)
Pilots are pretty well respected by law enforcement. I think they actually do have a secret code and the plane can go a couple hundred miles, but the second you get away he's calling the police. You'd have to kill him when he cuts the engine. However pilots sorta know their way around. He could do stuff like purposely land without the landing gear down in a busy area (stuff like that tends to draw attention and if you aren't wearing a seat belt that's a problem). She could purposely land in a busy commercial airport without permission (you're screwed). He could fly too low near something important. He could have an emergency (wink) and run out of gas or lose oil pressure and have to land on a highway (probably not that...a tad over extreme). Land at a military base.
You're way better off trying to make best buddies with a guy and then offer him a lot of money. Your average pilot is often a pretty successful dude who is decent at dealing with people and actually likes to fly. You're almost way better off saying "The wife is driving me nuts. Let's fly to Boston and party. I'll pay for everything."