The nearest airport is LNZ - Linz (Horsching), located 71.5 km west of Kollnitz.
Other airports nearby include VIE - Vienna Schwechat (106.7 km east), GRZ - Graz (141.7 km south), BRQ - Turany (151.6 km north east), KLU - Klagenfurt (Worthersee Intl) (188.9 km south),