The nearest airport is MLH - Bale Mulhouse, located 29.9 km south west of Käsern.
Other airports nearby include CMR - Colmar Houssen (54.3 km north west), ZQL - Donaueschingen Villingen (56.1 km north east), ZRH - Zurich (61.4 km south east), SXB - Strassbourg Entzheim (89.2 km north),