Hi, the concept is really cool but is quite difficult to keep track of all the planes, my suggestion would be, make the whole map visible to the player at once, and ramp up the number of planes spawning, so it is still quite overwhelming but at least you always know when a plane needs the confirmation to start the flight. Right now I found myself losing a lot of planes because, while checking if one crashed, I didn't have the time to check for any potential departures. Apart from that the concept is very interesting. Keep it up, it is really good!
Good luck with the jam <3333