Here is the full list of all 32 Airport Madness 4 achievements.
Land 5 aircraft within any 30 second period.
Move 250 airplanes in level 4.
Move 100 planes without a crash, at one airport.
Move a cumulative total of 1000 planes.
Move 250 airplanes in level 3.
Have 25 crashes in the entire game.
Move 250 airplanes in level 2.
Move a cumulative total of 500 planes.
Move 250 airplanes in level 1.
Achieve a 100% passenger mood rating at one airport.
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.
Have 10 collisions within a 5 minute period.
Make 3 planes collide simultaneously.
Move 250 airplanes in level 5.
Move 250 airplanes in level 6.
At any airport, move 125 planes with no more than 2 crashes.
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 5000 planes.
Land the Concorde (hidden in the game).
Land the Shuttle (hidden in the game).
Move 500 planes consecutively without a mishap.