The calculated distance (air line) between Saint-Félix-de-Valois and Montréal is approximately 46 miles respectively 75 kilometers.
By car or train, the actual journey to Montréal is certainly longer, as only the direct route (as the crow flies) between Saint-Félix-de-Valois and Montréal has been calculated here.
Air line (approximately)
75 kilometers
40 nautical miles