The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 21.4 km west of Sankt Marxen.
Other airports nearby include LJU - Ljubliana Ljubljana (47.1 km south), GRZ - Graz (74.3 km north east), MBX - Maribor (83.8 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (125.8 km south west),