The nearest airport is DTM - Dortmund, located 5.8 km north of Keller.
Other airports nearby include ZCA - Arnsberg Menden (19.7 km east), ESS - Essen Mulheim (47.8 km west), DUS - Duesseldorf Dusseldorf (62.4 km west), GUT - Guetersloh Gutersloh (69.6 km north east),