The calculated distance (air line) between Ars-sur-Moselle and Besançon is approximately 126 miles respectively 203 kilometers.
By car or train, the actual journey to Besançon is certainly longer, as only the direct route (as the crow flies) between Ars-sur-Moselle and Besançon has been calculated here.
Air line (approximately)
203 kilometers
110 nautical miles