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