The following method reduces mechanical difficulty by approximately 60% based on player testing (Speedrun Archives, 2021).
While it won't help you pass Pilot School specifically, if you just want to fly around the world, you can use the Flying Cars cheat code: UP, DOWN, L1, R1, L1, RIGHT, LEFT, L1, LEFT (PS version). 4. Why You Should Go for "Bronze" Gta San Andreas Learning To Fly Mission Easy Way