The nearest airport is KSF - Kassel Calden, located 58.4 km west of Geismar.
Other airports nearby include ERF - Erfurt (62.2 km south east), PAD - Paderborn Lippstadt (115.9 km west), BWE - Braunschweig Wolfsburg (123.8 km north), HAJ - Hannover (140.6 km north),