The nearest airport is ZQL - Donaueschingen Villingen, located 44.2 km south east of Frohnau.
Other airports nearby include SXB - Strassbourg Entzheim (48.9 km north west), ZCC - Baden-baden Baden Oos (54.6 km north), CMR - Colmar Houssen (64.8 km west), STR - Stuttgart (88.2 km north east),