The calculated distance (air line) between Déville-lès-Rouen and Orléans is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Orléans is certainly longer, as only the direct route (as the crow flies) between Déville-lès-Rouen and Orléans has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles