[1] Austrian Airlines served St. Gallen-Altenrhein from Vienna since 2003 when it took over the route from Rheintalflug, a predecessor of InterSky.

[2] In spring 2013, Austrian announced the termination of its route to Vienna due to continuing losses as a result of the harsh competition.

[3] The airport features a small passenger terminal building and some apron and hangar stands for aircraft such as the Embraer 170, business jets or general aviation planes such as the Cessna 172.

The paved, eastbound runway 10 is equipped with an Instrument landing system (ILS CAT I).

[4] Due to its short length the main runway can only be used by smaller passenger aircraft such as the Embraer E-Jets or the Bombardier Q Series.