Is there a direct train from Sarnia to Oshawa?

No, you must transfer at Toronto Union Station.

How long is the drive?

It typically takes 3.5 hours under normal traffic conditions.

What is the best highway to take?

Highway 401 is the primary and most direct route.

Are there buses available?

Yes, various coach services operate between these cities with transfers.

The route is primarily industrial and urban, focusing on efficiency rather than scenery.

Sarnia

Oshawa

Train Driving

Sarnia to Oshawa

Updated: 26 May 2026

The journey from Sarnia to Oshawa spans approximately 320 kilometers across Southern Ontario. Most travelers utilize Highway 401, the busiest corridor in Canada, to complete the trip in about three and a half hours. VIA Rail offers a scenic alternative, though it requires a transfer at Union Station in Toronto. You will pass through major hubs like London and Mississauga along the way. Traffic congestion is common near the Greater Toronto Area, so plan your departure accordingly. This route connects the chemical valley of Sarnia to the automotive heart of Oshawa.

Total Distance: 320 km driving distance; 295 km straight-line air distance.

Fastest Way

Driving via Highway 401 is the fastest method, typically taking 3.5 hours depending on traffic.

Cheapest Way

Driving is the cheapest option if traveling with more than one person due to fuel efficiency.

Compare Sarnia to Oshawa Routes

	Train Connecting	Driving Direct
Duration	5 hours 15 mins	3 hours 30 mins
Avg Price	$80-$130	$45-$60 in fuel
Operator	VIA Rail	Personal Vehicle
Route	Sarnia Station to Toronto Union Station, then GO Transit to Oshawa.	Highway 402 East to Highway 401 East.
Tip	Book your VIA Rail ticket in advance to secure the lowest fare.	Avoid the 401 during rush hour between 7 AM and 9 AM to save time.

Travel Tips

Traffic Alerts
Use apps like Waze to monitor real-time traffic on Highway 401.
GO Transit
Use a PRESTO card for seamless transfers between GO trains and buses.
Rest Stops
The ONroute service centers along the 401 provide reliable food and fuel.
Booking
Always book train tickets at least two weeks early for better pricing.
Weather
Check Ontario 511 for winter road conditions before departing.

Safety Tips

Winter Driving
Ensure your vehicle has winter tires installed between November and April.
Fatigue
Take a break every two hours to prevent driver fatigue on the long highway stretch.
Emergency Kit
Keep a basic emergency kit with blankets and water in your trunk.
Speed Limits
Strictly adhere to the 100 km/h speed limit on the 401 to avoid heavy fines.