The calculated distance (air line) between Petritor - Ost and Düsseldorf is approximately 175 miles respectively 282 kilometers.
By car or train, the actual journey to Düsseldorf is certainly longer, as only the direct route (as the crow flies) between Petritor - Ost and Düsseldorf has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles