The calculated distance (air line) between Saint-Félix-de-Valois and Laval is approximately 43 miles respectively 70 kilometers.
By car or train, the actual journey to Laval is certainly longer, as only the direct route (as the crow flies) between Saint-Félix-de-Valois and Laval has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles