The nearest airport is MBX - Maribor, located 35.6 km south of Sustgraben.
Other airports nearby include GRZ - Graz (37.9 km north west), KLU - Klagenfurt (Worthersee Intl) (115.4 km west), ZAG - Zagreb (117.1 km south), LJU - Ljubliana Ljubljana (122.6 km south west),