The calculated distance (air line) between Valfin-lès-Saint-Claude and Strasbourg is approximately 173 miles respectively 278 kilometers.
By car or train, the actual journey to Strasbourg is certainly longer, as only the direct route (as the crow flies) between Valfin-lès-Saint-Claude and Strasbourg has been calculated here.
Air line (approximately)
278 kilometers
150 nautical miles