

There are 3 main formulae for airports: Opening Cost, Upgrade Cost, and Closing Value.

This will, of course, bring more people to that airport.

Upgrading an airport will not change the airport's Class.Īirports can be advertised for a certain cost to increase demand in that city for 8 hours. All airports start at "Upgrade 1" and can be upgraded further using coins. You cannot change an airport's Class.Īirports can be upgraded to add more jobs & layover slots for a certain cost. A Class 2 ( ) airport allows Class 1 and Class 2 planes to land, and Class 3 ( ) airports allow all planes to land. A Class 1 airport ( ) will only allow Class 1 airplanes to land. The Class of an airport indicates what planes can fly into it. In the "Airport Info" screen these are referred to as " Class 1", " Class 2", and " Class 3". The general formula for build cost is C o s t = ( P o p u l a t i o n ∗ 5000 ) + 1000, where the population is in millions.Īirports are divided into three sizes based on the population of the underlying city. City sizes range from 0.0M to 10.0M people. The size of a city impacts the airport build cost, the number of jobs that will be available when the jobs list refreshes, and the number of people or cargo units that can be in layover at any time at an airport.
