The nearest airport is HAJ - Hannover, located 58.9 km north of Oelkassen.
Other airports nearby include KSF - Kassel Calden (60.7 km south), BWE - Braunschweig Wolfsburg (77.3 km north east), PAD - Paderborn Lippstadt (77.6 km south west), ZCN - Celle (78.3 km north),