The calculated distance (air line) between La Roche-sur-Foron and Besançon is approximately 83 miles respectively 133 kilometers.
By car or train, the actual journey to Besançon is certainly longer, as only the direct route (as the crow flies) between La Roche-sur-Foron and Besançon has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles