The calculated distance (air line) between La Ferté-sous-Jouarre and Besançon is approximately 178 miles respectively 286 kilometers.
By car or train, the actual journey to Besançon is certainly longer, as only the direct route (as the crow flies) between La Ferté-sous-Jouarre and Besançon has been calculated here.
Air line (approximately)
286 kilometers
154 nautical miles