Here is the full list of all 26 SimAirport achievements.
Total Flights Landed at all of your airports.
Started one of the tutorials.
Completed the Basic Tutorial
Completed the Expansion Tutorial.
Completed the Luggage Tutorial.
Completed the PA Speakers and Fuel Tutorial.
Completed the Scheduling Workers Tutorial.
Completed the Food and Shopping Tutorial.
Earned $10,000,000!
Tons of passengers in the airport.
Make $1,250,000 in profit selling fuel.
Unlock all technology in the research tree.
Purchase runway lights for any runway.
No passenger missed their flight in a 24-hour period where at least 200 passengers were boarded.
Have 5,000 tiles of road.
Have an airplane land in extreme (20 knots or higher) weather.
Board 2,500 passengers in a 24-hour period.
Board 6,000 passengers in a 24-hour period.
Board 8,000 passengers in a 24-hour period.
Board 10,000 passengers in a 24-hour period.
Sell your airport for a minimum of $25,000,000.
Have a passenger-environment rating of 85% in an airport serving at least 200 passengers.
Win a scenario.
Lose a scenario.
Have one day of perfect operations.
Have thirty consecutive days of perfect operations.