There are 6 ways to get from Thornhill to Sarnia by train, bus (Flixbus), car, plane, or bus
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Train via London
best- Take the train from Toronto Union Station to Londontrain VIA Rail
- Take the train from London to Sarniatrain VIA Rail
5h 50m$64–463Bus (Flixbus)
cheapest- Take the bus from Toronto Pearson Airport to Sarniabus FlixBus 2702 / ...
5h 55m$48–69Drive 291.5 km
- Drive from Thornhill to Sarniacar 291.5 km
3h 4m$60–86Fly, train
- Fly from Toronto Pearson International Airport (YYZ) to London International Airport (YXU)plane YYZ - YXU
- Take the train from London to Sarniatrain
5h 29m$510–1,835Train
- Take the train from Toronto Union Station to Sarniatrain VIA Rail
6h 24m$71–278Bus via London
- Take the bus from Pearson International Airport Terminal 1 to London, ON - VIA Railbus Toronto
- Take the bus from London, ON - Downtown to Sarnia, ON - Bayside Terminalbus London
6h 35m$52–73
Thornhill to Sarnia by subway and train
Comparing Your Travel Options
The cheapest way to get from Thornhill to Sarnia is to bus which costs $45 - $70 and takes 5h 55m.
The fastest way to get from Thornhill to Sarnia is to drive which takes 3h 4m and costs $55 - $90.
No, there is no direct bus from Thornhill to Sarnia. However, there are services departing from Richmond Hill Centre and arriving at Sarnia via Toronto Pearson Airport. The journey, including transfers, takes approximately 5h 55m.
No, there is no direct train from Thornhill station to Sarnia. However, there are services departing from Finch Station - Southbound Platform and arriving at Sarnia via Toronto Union Station and London. The journey, including transfers, takes approximately 5h 50m.
The distance between Thornhill and Sarnia is 295 km. The road distance is 291.5 km.
The best way to get from Thornhill to Sarnia without a car is to train via London which takes 5h 50m and costs $60 - $470.
It takes approximately 5h 50m to get from Thornhill to Sarnia, including transfers.
Thornhill to Sarnia bus services, operated by Flixbus USA, depart from Toronto Pearson Airport station.
Thornhill to Sarnia train services, operated by VIA Rail, depart from Toronto Union Station.
The best way to get from Thornhill to Sarnia is to train via London which takes 5h 50m and costs $60 - $470. Alternatively, you can bus, which costs $45 - $70 and takes 5h 55m.
What companies run services between Thornhill, ON, Canada and Sarnia, ON, Canada?
You can take a subway from Finch Station - Southbound Platform to Sarnia via Union Station - Northbound Platform Towards Vaughan Metropolitan Centre, Toronto Union Station, and London in around 5h 50m. Alternatively, Flixbus USA operates a bus from Toronto Pearson Airport to Sarnia twice daily. Tickets cost $40–60 and the journey takes 4h 20m.
- Website
- aircanada.com
Flights from Toronto Pearson International Airport to London International Airport
- Ave. Duration
- 50 min
- When
- Every day
- Estimated price
- $90–750
- Phone
- +1 888 842-7245
- Website
- VIA Rail
Train from Toronto Union Station to London
- Ave. Duration
- 2h 16m
- Frequency
- Every 4 hours
- Estimated price
- $40–240
- Website
- VIA Rail
- Escape
- $40–130
- Business
- $85–230
- Business Plus
- $100–240
- Economy
- $45–140
- Economy Plus
- $50–150
Train from London to Sarnia
- Ave. Duration
- 1h 6m
- Frequency
- Once daily
- Estimated price
- $22–220
- Website
- VIA Rail
- Escape
- $22–85
- Business
- $65–200
- Business Plus
- $80–220
- Economy
- $24–95
- Economy Plus
- $27–110
Train from London to Sarnia
- Ave. Duration
- 1h 6m
- Frequency
- Once daily
- Estimated price
- $22–220
- Website
- VIA Rail
- Escape
- $22–85
- Business
- $65–200
- Business Plus
- $80–220
- Economy
- $24–95
- Economy Plus
- $27–110
Train from Toronto Union Station to Sarnia
- Ave. Duration
- 4h 44m
- Frequency
- Once daily
- Estimated price
- $65–270
- Website
- VIA Rail
- Escape
- $65–180
- Business
- $110–260
- Business Plus
- $130–270
- Economy
- $75–190
- Economy Plus
- $80–200
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Toronto Pearson Airport to Sarnia
- Ave. Duration
- 4h 20m
- Frequency
- Twice daily
- Estimated price
- $40–60
- Schedules at
- Flixbus USA
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Booking & Getting There
Thornhill to Sarnia bus services, operated by Flixbus USA, arrive at Sarnia station.
Thornhill to Sarnia train services, operated by VIA Rail, arrive at London station.
Yes, the driving distance between Thornhill to Sarnia is 292 km. It takes approximately 3h 4m to drive from Thornhill to Sarnia.
Book your Thornhill to Sarnia bus tickets online with Omio.
There are 67+ hotels available in Sarnia.






