Is there a train to Sarnia?

No, there is no direct passenger rail service from Chatham to Sarnia.

How long does it take to drive?

It takes approximately 60 minutes under normal conditions.

Are there tolls on Highway 40?

No, Highway 40 is a toll-free provincial highway.

Yes, Sarnia is a standard Canadian city with typical safety levels.

There is no direct public bus service; private carpooling is common.

Chatham

Sarnia

Driving

Chatham to Sarnia

Updated: 28 May 2026

The route from Chatham to Sarnia covers 80 kilometers, primarily using Highway 40 North. This is a direct drive through the rural landscape of Lambton County. You will pass through the town of Petrolia and the outskirts of Oil Springs. Driving is the only practical mode of transport as there is no direct rail or bus service between these two specific points. The journey typically takes one hour. Sarnia is situated at the mouth of the St. Clair River, bordering Port Huron, Michigan.

Total Distance: 80 km driving distance, 75 km straight-line air distance.

Fastest Way

Driving takes exactly 60 minutes, making it the fastest and only viable option.

Cheapest Way

Driving is the only practical way to travel between these two cities.

Compare Chatham to Sarnia Routes

Driving

Direct

Duration

1 hour

Avg Price

15-20 CAD

Operator

Personal Vehicle

Route

Highway 40 North.

Highway 40 is a two-lane highway for much of the trip; watch for farm equipment.

Travel Tips

Watch for Trucks
Highway 40 is frequently used by heavy trucks; maintain a safe distance.
Border Traffic
If you are heading to the border, check wait times for the Blue Water Bridge.
Fuel Stops
Fill up in Chatham, as gas stations are sparse on the rural sections of Highway 40.
Weather Awareness
Lake Huron can cause sudden weather changes; check the forecast before leaving.
Local Radio
Tune into local Sarnia radio stations for traffic updates as you approach the city.

Safety Tips

Rural Driving
Be cautious of wildlife, especially at dawn and dusk on Highway 40.
Passing Zones
Only pass in designated areas, as the road is mostly single-lane in each direction.
Emergency Preparedness
Carry a charged phone and a basic car repair kit.
Intersection Safety
Be alert at rural intersections where visibility may be limited by crops.