The nearest airport is GRZ - Graz, located 37.3 km north west of Grubberg.
Other airports nearby include MBX - Maribor (43.8 km south), KLU - Klagenfurt (Worthersee Intl) (120.3 km west), ZAG - Zagreb (123.9 km south), LJU - Ljubliana Ljubljana (129.6 km south west),