Ontario Highway 401

Map of Ontario Highway 401 System

From Wikipedia, the free encyclopedia

Provincial Highway 401, also known by its official name of the Macdonald-Cartier Freeway and colloquially as the four-oh-one, is a freeway in the Canadian province of Ontario, stretching from Windsor to the Quebec border. The segment of Highway ...

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Ontario Highway 401 Statistics

Start Terminus
Highway 3 to Windsor

817.90 km/ 508.20 mi


End Terminus
A-20 towards Montreal, QC

Ontario Highway 401 Exits

Highway ON-401 runs West to East with exit numbers starting at the western most exit of each State/Province..

For exit details, click on green exit sign.

Highways List