The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 72.8 km south east of Althofen.
Other airports nearby include SZG - Salzburg (90.2 km north west), LJU - Ljubliana Ljubljana (116.9 km south east), LNZ - Linz (Horsching) (125.2 km north), GRZ - Graz (130.8 km east),