The calculated distance (air line) between Sainte Catherine de la Jacques Cartier and Longueuil is approximately 128 miles respectively 206 kilometers.
By car or train, the actual journey to Longueuil is certainly longer, as only the direct route (as the crow flies) between Sainte Catherine de la Jacques Cartier and Longueuil has been calculated here.
Air line (approximately)
206 kilometers
111 nautical miles