The calculated distance (air line) between Saint-Genis-Laval and Besançon is approximately 122 miles respectively 197 kilometers.
By car or train, the actual journey to Besançon is certainly longer, as only the direct route (as the crow flies) between Saint-Genis-Laval and Besançon has been calculated here.
Air line (approximately)
197 kilometers
106 nautical miles