The nearest airport is SZG - Salzburg, located 40.6 km west of Radau.
Other airports nearby include LNZ - Linz (Horsching) (75.4 km north east), KLU - Klagenfurt (Worthersee Intl) (134.1 km south east), MUC - Munich Munchen (148.3 km north west), GRZ - Graz (165.1 km south east),