The calculated distance (air line) between Bochum-Hordel and Ommoord is approximately 117 miles respectively 188 kilometers.
By car or train, the actual journey to Ommoord is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Ommoord has been calculated here.
Air line (approximately)
188 kilometers
102 nautical miles