The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 67.0 km south east of Klausen.
Other airports nearby include SZG - Salzburg (98.4 km north west), LJU - Ljubliana Ljubljana (113.5 km south), GRZ - Graz (115.1 km east), LNZ - Linz (Horsching) (118.1 km north),