Is there a train to Sarnia?

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

How long is the drive?

It takes about 7 hours of driving time.

Are there direct buses?

No, you usually need to transfer in London.

What is the best highway?

Highway 402 is the main route into Sarnia.

Yes, it is a safe city with standard urban precautions.

Nepean

Sarnia

Bus Driving

Nepean to Sarnia

Updated: 28 May 2026

The trip from Nepean to Sarnia is a 700-kilometer drive through Southern Ontario. You can drive via Highway 417 and Highway 401, or take a bus from Ottawa. The route takes you through the heart of the industrial and agricultural regions of Ontario. Sarnia is known for its beautiful waterfront and proximity to the US border. It is a great destination for a weekend getaway.

Total Distance: Driving distance is 700 km; straight-line air distance is 600 km.

Fastest Way

Driving takes approximately 7 hours depending on traffic.

Cheapest Way

Driving is the most cost-effective for groups, while the bus is affordable for solo travelers.

Compare Nepean to Sarnia Routes

	Bus Connecting	Driving Direct
Duration	8 hours	7 hours
Avg Price	$100 - $170	$90 - $130 in fuel
Operator	Megabus	Personal Vehicle
Route	Ottawa to London, then local transit to Sarnia	Highway 417 to Highway 401 to Highway 402
Tip	Megabus offers frequent service between Ottawa and London.	The 401 is the main artery; expect heavy traffic near the GTA.

Travel Tips

Traffic
The 401 can be very busy; check traffic reports before leaving.
Bus
Megabus is a reliable and affordable option for travel between cities.
Dining
Sarnia has a great selection of local restaurants and cafes.
Weather
Southern Ontario has a mild climate; it is great for outdoor activities.
Parking
Parking is generally easy to find in the downtown area.