The nearest airport is SZG - Salzburg, located 72.0 km north west of Sonnberg.
Other airports nearby include LNZ - Linz (Horsching) (93.5 km north), KLU - Klagenfurt (Worthersee Intl) (97.0 km south east), GRZ - Graz (133.6 km east), LJU - Ljubliana Ljubljana (143.5 km south),