The nearest airport is GRZ - Graz, located 26.0 km south of Obertrumm.
Other airports nearby include MBX - Maribor (85.8 km south), KLU - Klagenfurt (Worthersee Intl) (100.1 km south west), LJU - Ljubliana Ljubljana (129.8 km south west), VIE - Vienna Schwechat (135.1 km north east),