By carThe major highways through the Montérégie are:
Autoroute 15, connecting Montreal with U.S. Interstate 87 to New York
Autoroute 10, connecting Montreal to Sherbrooke and the Eastern Townships
Autoroute 20, conecting Quebec City to Montreal through the eastern section of the Montérégie, and then reappearing in the westernmost section of the Montérégie on the way to Toronto
The Saint-Lawrence River splits off the westernmost part of the region from the rest. This currently makes it inconvenient to drive from one end of the region to the other without going through the island of Montreal. A new toll highway, Autoroute 30, is in the early building stages, which will span the river, connecting the Montérégie from east to west and act as a bypass for Montreal.
Public transportPublic transportation within the Montérégie region is quite limited, as most of its public transport focuses on getting people to and from Montreal rather than around the Montérégie region.
The Reseau de transport de Longueuil [ (http://www.rtl-longueuil....)] operates bus routes in the suburbs of the Montérégie closest to Montreal.
Check with the trains and busses coming to and from Montreal see the "Get In" section to see if it is possible to get from one part of the Montérégie to another via Montreal.