The nearest airport is GRZ - Graz, located 54.6 km south of Untertal.
Other airports nearby include KLU - Klagenfurt (Worthersee Intl) (110.4 km south west), MBX - Maribor (114.4 km south), LNZ - Linz (Horsching) (114.6 km north west), VIE - Vienna Schwechat (127.2 km north east),