To indicate that helicopters land at the site, the airport has helipad signs on the surface of the runways.

The terrain around Kotroni Airport is hilly to the north west, but to the southeast it is flat.

The highest point nearby is Mount Pentelicus, 1,109 meters above sea level, 8.7 km southwest of Kotroni Airport.

Closest major community is Acharnes, 19.9 km west of Kotroni Airport.

In the area around Kotroni Airport there are unusually many named peninsulas, islands and bays.