The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 57.5 km south of Feßnach.
Other airports nearby include GRZ - Graz (76.2 km east), LJU - Ljubliana Ljubljana (103.3 km south), MBX - Maribor (119.5 km south east), LNZ - Linz (Horsching) (121.9 km north),