People keep talking about this mythical Flight School that you had to do in GTA5, yet i've never seen it.
I.. can't tell if you're being serious or not. O.o. It's the Plane icon right next to the entrance to the airport hanger; pretty hard to miss, hence my suspicion.
I never came across the school either. I figured one of the missions would send me over there at some point but that never happened. By the end of the game, I forgot about the Flight School altogether.