The nearest airport is DTM - Dortmund, located 24.3 km east of Harpen.
Other airports nearby include ESS - Essen Mulheim (24.6 km west), DUS - Duesseldorf Dusseldorf (40.9 km south west), ZCA - Arnsberg Menden (43.9 km east), MGL - Moenchengladbach Monchengladbach (60.1 km south west),