The nearest airport is KSF - Kassel Calden, located 41.6 km west of Geismar.
Other airports nearby include ERF - Erfurt (92.3 km south east), PAD - Paderborn Lippstadt (93.1 km west), BWE - Braunschweig Wolfsburg (98.5 km north east), HAJ - Hannover (106.6 km north),