There is no direct highway, but you take Kimball south from Sarnia, until you get to St. Clair Rd (40) that should take you to the 401 highway leads to Windsor.
The road mile distance between Sarnia and Windsor is approximately 100 miles.
The driving distance from Sarnia to Windsor is 72.9 road miles.
73 miles
163 miles / 262kmThough driving it is more like 290 km taking this route:Take HIGHWAY 21 - SOUTH, from Goderich, to HIGHWAY 402 - WEST to SARNIA; then get off at the NEXT EXIT, and continue on RR-21 SOUTH to HIGHWAY 401 - WEST to WINDSOR.Take HIGHWAY 401 - WEST to Windsor.
In the game "Grind R21," the town you are looking for is likely located near Forest, Ontario. The major highways that lead to Sarnia from the area are Highway 21 and Highway 402. Highway 21 runs along the lakeshore, while Highway 402 provides a direct route to Sarnia. These routes make it accessible from Forest to Sarnia.
Sarnia is 150KM from Kitchener in terms of distance but more like 190KM by highway. It is a two hour drive
About 1.5 hours assuming the border isn't backed up.
335 kilometres taking this route:Take HIGHWAY 403 WEST from Oakville to HIGHWAY 401 WEST to LONDON at the END of HIGHWAY 403.Take HIGHWAY 401 WEST to Windsor.
There are actually 3 ways to go.If you cut through Michigan it's 67.24 milesIf you go through Chatham it's 98.66 milesIf you go through Kimball it's 97.64 miles
217 miles (350 kilometres) taking this route:Take HIGHWAY 410 SOUTH from Brampton to HIGHWAY 401. Follow signs to HIGHWAY 401 WEST to LONDON.Take HIGHWAY 401 WEST to Windsor.
About 30 minutes it takes to drive from Detroit to Windsor.
The motto of Sarnia is 'Sarnia Semper'.