The calculated distance (air line) between Besançon and Estavayer-le-Lac is approximately 48 miles respectively 77 kilometers.
By car or train, the actual journey to Estavayer-le-Lac is certainly longer, as only the direct route (as the crow flies) between Besançon and Estavayer-le-Lac has been calculated here.
Air line (approximately)
77 kilometers
42 nautical miles