The nearest airport is LNZ - Linz (Horsching), located 55.6 km north of Sonnleiten.
Other airports nearby include SZG - Salzburg (89.9 km west), KLU - Klagenfurt (Worthersee Intl) (121.7 km south), GRZ - Graz (124.8 km south east), LJU - Ljubliana Ljubljana (169.0 km south),