Here is the full list of all 35 Airport CEO achievements.
Have an airport with more than 2500 current passengers with a passenger rating above 80%
Depart 10000 commercial aircraft
Color a vehicle
Depart 5000 GA aircraft
Complete all R&D projects
Have a net worth of $10 000 000
Turnaround 75 aircraft in one day
Have an airport with more than 500 current passengers with a passenger rating above 80%
Depart 1000 commercial aircraft
Repair a broken aircraft
Depart 500 GA aircraft
Turnaround 25 aircraft in one day
Have your first aircraft depart from an airport
Land every aircraft type in the game
Perform a turnaround including all services
Succesfully turnaround a 747
Succesfully turnaround an A380
Turnaround 200 aircraft in one day
Have an airport with more than 5000 current passengers with a passenger rating above 80%
Depart 500 000 passenger via aircraft
Depart 50 000 000 passenger via aircraft
Staff happiness above 90% with a staff force of above 100
Staff happiness below 10% with a staff force of above 100
Reroute 10000 bags using tilt trays
Manually scan 750 000 bags
Manually scan 75 000 000 bags
Have a total rating of 95% or higher
Win the Airport of the Year Award
Fully pay back a loan
Have a net worth of $100 000 000
Load an airport from Steam Workshop