The calculated distance (air line) between Ginsheim-Gustavsburg and Dortmund is approximately 113 miles respectively 182 kilometers.
By car or train, the actual journey to Dortmund is certainly longer, as only the direct route (as the crow flies) between Ginsheim-Gustavsburg and Dortmund has been calculated here.
Air line (approximately)
182 kilometers
98 nautical miles