The nearest airport is PAD - Paderborn Lippstadt, located 51.2 km south west of Siekholz.
Other airports nearby include GUT - Guetersloh Gutersloh (58.0 km west), KSF - Kassel Calden (60.5 km south), HAJ - Hannover (69.2 km north east), ZCN - Celle (94.4 km north east),