In June 1929, the pilot hero of World War I, Julius Fedrigoni Edler von Etschthal, has the function of flight director of the airport until 1939.

[4] In April 2015, Austrian Airlines also announced that a closure of their domestic route to Vienna was under consideration within the next few years based on economic reasons.

[10] In 2022, the airport's then majority owner, Lilihill Group, announced the creation of a new regional airline based in Klagenfurt, Liliair.

[11] Previously there was ongoing controversy between Lilihill and the state of Carinthia, which proposed to buy back the airport, leaving the Liliair project in doubt.

[14] In May 2023, the city of Klagenfurt and the state of Carinthia announced it would execute a buy-back option and re-acquired majority ownership of the airport after longstanding debate.

[15] Klagenfurt Airport consists of one small passenger terminal building which features some shops and restaurants as well as a visitors terrace.

A regular suburban bus service connects the airport with the city centre including the Klagenfurt central station.