I'm not scared to fly I just enjoy humming Metallica during takeoff.
If you're scared of flying try humming Metallica to calm yourself down. A demon brings down a place but some of them survive which means the demon wants to finish the job. So the boys have to go flying but there's a problem since Dean is afraid to fly. He does drive everyone which should have given everyone a clue that he doesn't enjoy flying.
So they have to find the possessed person so Sam can perform an exorcism. Who said Latin was a dead language? See you can learn from TV so the next time you suspect someone's possessed just say Cristo to see if they flinch. The boys saved the passengers and I'm guessing Dean will never step on a plane ever again. He can hold my hand and we could hum Metallica together perhaps Enter Sandman.