The nearest airport is GWT - Westerland Sylt, located 41.2 km west of Karlum.
Other airports nearby include SKS - Skrydstrup (47.6 km north east), SGD - Soenderborg Sonderborg (54.9 km east), EBJ - Esbjerg (81.5 km north), KEL - Kiel Holtenau (91.4 km south east),