The nearest airport is ZQL - Donaueschingen Villingen, located 41.3 km south east of Untertal.
Other airports nearby include SXB - Strassbourg Entzheim (52.0 km north west), ZCC - Baden-baden Baden Oos (56.5 km north), CMR - Colmar Houssen (66.6 km west), STR - Stuttgart (87.0 km north east),