The trip from Prévost to Longueuil covers roughly 75 kilometers, moving from the Laurentians into the heart of the Greater Montreal area. You will primarily travel south on the A-15, crossing the island of Montreal before reaching the South Shore. This route is heavily trafficked, especially during morning and evening rush hours. Expect a travel time of 60 to 90 minutes depending on congestion at the bridges.
Total Distance: 75 km driving distance; 65 km straight-line air distance.
Use the Champlain Bridge for the most direct access to Longueuil.
Spring or early autumn to avoid the peak winter snowstorm traffic on the A-15.