The calculated distance (air line) between Leinefelde-Worbis and Düsseldorf is approximately 154 miles respectively 247 kilometers.
By car or train, the actual journey to Düsseldorf is certainly longer, as only the direct route (as the crow flies) between Leinefelde-Worbis and Düsseldorf has been calculated here.
Air line (approximately)
247 kilometers
134 nautical miles