The nearest airport is VIE - Vienna Schwechat, located 64.3 km north east of Sonnberg.
Other airports nearby include GRZ - Graz (87.2 km south west), BTS - Bratislava M R Stefanik (100.7 km north east), MBX - Maribor (129.8 km south), LNZ - Linz (Horsching) (163.8 km north west),