The nearest airport is KSF - Kassel Calden, located 46.0 km south of Altendorf.
Other airports nearby include PAD - Paderborn Lippstadt (64.0 km west), HAJ - Hannover (73.0 km north), GUT - Guetersloh Gutersloh (81.9 km west), BWE - Braunschweig Wolfsburg (92.4 km north east),