The nearest airport is FDH - Friedrichshafen, located 34.0 km west of Au.
Other airports nearby include ACH - St Gallen Altenrhein (41.5 km south west), AGB - Augsburg (104.8 km north east), OBF - Oberpfaffenhofen (106.2 km east), ZQL - Donaueschingen Villingen (109.7 km west),