Here is the full list of all 32 Airport Madness 4 achievements.
Land no aircraft for 3 minutes.
Get rid of 20 planes within 3 minutes.
Land a massive rush of airplanes successfully.
Make 3 planes collide simultaneously.
Have 10 collisions within a 5 minute period.
Have 25 crashes in the entire game.
Have 3 midair collisions within any 30 second period.
Hit all targets within 60 seconds.
Land 5 aircraft within any 30 second period.
Last for 5 minutes without a crash.
Have 25 aircraft on the screen all at once.
Move 50 planes at high speed.
Move 250 airplanes in level 1.
Move 250 airplanes in level 2.
Move 250 airplanes in level 3.
Move 250 airplanes in level 4.
Move 250 airplanes in level 5.
Move 250 airplanes in level 6.
At any airport, move 125 planes with no more than 2 crashes.
Achieve a 100% passenger mood rating at one airport.
Move 100 planes without a crash, at one airport.
Move 250 planes without a crash, at one airport.
Earn $250,000 at one airport.
Earn $500,000 at one airport.
Earn $1,000,000 at one airport.
Earn $2,000,000 at one airport.
Move a cumulative total of 500 planes.
Move a cumulative total of 1000 planes.
Move a cumulative total of 5000 planes.
Land the Concorde (hidden in the game).
Land the Shuttle (hidden in the game).
Move 500 planes consecutively without a mishap.