Airports
With adding of air transport, player needs to build an airport. The airport structure is more complex than the structure of a railway station. You will find some examples of the airport on next page.
An old, basic airport unlocks when you reach 3rd epoch of the game. After reaching the 5th epoch, you will unlock new, modern airport. Airports could be upgraded by the same upgrade tool like the railways and roads.
Airport Objects
All structures of the airport (except of the hangar) must fit in the total size of 6x6 (or 8x8 with the Control Tower extension).
Terminal
Airport terminal is the place, where the airplanes park and loading/unloading of passengers or cargo occurs.
Terminal is an essential building, no airplane will land on the runway which is not connected to a terminal, unless there is a hangar and the airplane has been sent to a hangar (by clicking "Return to depot" button).
The old terminal costs 1100 
while the modern one costs 2200 .
You can build as many terminals as you wish to a limit of the total airport size.
Terminal Extensions
Terminal extensions have the same function as railway station extensions, they cost the same and can be attached to either the terminal or to any other structure of the airport according to your own desire and design.
If you have build pure airport, or if you attach at least one square of airport structure (runway/taxiway) to your existing railway/road station, the below listed extensions will change the graphic appearance to look like airport extensions. Their function remains identical though.
Pure airports have available only three extensions. If you build combined airport/road/railway station, you will have access to all available extensions, but only these three have graphic airport appearance.
| Image old | Image new | Extension | Information | Size |
|---|---|---|---|---|
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A basic building with shelter for passengers. Increases catchment area of the station from 2 to 4 tiles. | 2x1 |
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Passengers get hungry waiting for trains - keep them happy here. | 2x1 |
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Control tower has only one graphic version |
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Building a control tower increases the maximum size of the station from 6x6 to 8x8 tiles. | 1x1 |