Is there a train to Sarnia?

Yes, VIA Rail operates service to Sarnia from Toronto via London.

No, the highways are toll-free.

Yes, it is directly across from Port Huron, Michigan.

Guelph

Sarnia

Driving

Guelph to Sarnia

Updated: 30 May 2026

The journey from Guelph to Sarnia covers approximately 200 kilometers. You will primarily use Highway 401 West and then transition to Highway 402 West near London. The drive typically takes 2.5 hours depending on traffic through the Kitchener-Waterloo and London corridors. Sarnia is located at the mouth of the St. Clair River, serving as a major border crossing to the United States. It is a key industrial and recreational hub in Southwestern Ontario.

Total Distance: 200 km driving distance; 180 km straight-line air distance.

Fastest Way

Driving via Highway 401 and 402 takes approximately 2.5 hours.

Cheapest Way

Driving your own vehicle is the most cost-effective way to reach Sarnia.

Compare Guelph to Sarnia Routes

Driving

Direct

Duration

2 hours 30 mins

Avg Price

35-50 CAD in fuel

Operator

Personal Vehicle

Route

Highway 401 West to Highway 402 West.

Traffic can be heavy near London; plan your departure accordingly.

Travel Tips

Traffic
Avoid the 401 during rush hour near Kitchener and London.
Border Crossing
If crossing into the US, check wait times at the Blue Water Bridge.
Fuel
Gas is often cheaper in smaller towns along the 401 than in major cities.
Weather
Lake Huron can be windy; dress in layers even in summer.
Parking
Public parking is readily available near the Sarnia waterfront.

Safety Tips

Highway Safety
Highway 401 is busy; maintain a safe following distance.
Winter Driving
Snow squalls are common near Sarnia; carry winter tires.
Emergency
Bluewater Health is the primary hospital in Sarnia.
Road Conditions
Check 511 Ontario for real-time traffic and construction updates.