The nearest airport is LNZ - Linz (Horsching), located 60.4 km south west of Kienau.
Other airports nearby include VIE - Vienna Schwechat (133.0 km east), BRQ - Turany (150.5 km north east), SZG - Salzburg (161.3 km south west), GRZ - Graz (174.7 km south),