Flight
Driving
Thorold to Thunder Bay
Updated: 27 May 2026
The journey from Thorold to Thunder Bay is a massive undertaking, covering over 1,500 km across Northern Ontario. Driving requires multiple days, following the Trans-Canada Highway (Highway 17) along the rugged northern shore of Lake Superior. For most travelers, flying from Toronto Pearson to Thunder Bay International Airport is the only practical option. If you choose to drive, prepare for a scenic but demanding route through vast wilderness and small northern towns.
Total Distance: 1,550 km driving distance; 1,050 km straight-line air distance.
Fastest Way
Flying is the only practical way to reach Thunder Bay in a single day.
Cheapest Way
Driving is cheaper for groups, but flying saves significant time and accommodation costs.
Compare Thorold to Thunder Bay Routes
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Direct
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Direct
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|---|---|---|
| Duration | 2 hours 15 mins | 18 hours (driving time) |
| Avg Price | $400-$700 | $300-$450 in fuel |
| Operator | Air Canada / WestJet | Personal Vehicle |
| Route | YYZ to YQT. | Highway 400 to 69 to 17 (Trans-Canada). |
| Tip | Flights are the most reliable way to cover this distance. | Plan for at least two days of driving with an overnight stop in Sault Ste. Marie. |
Travel Tips
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Overnight StopsIf driving, Sault Ste. Marie or Wawa are the best places to break up the journey.
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Gas PlanningNever let your tank drop below half in Northern Ontario; stations can be 100 km apart.
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WeatherLake Superior creates its own weather; expect sudden fog and temperature drops.
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ConnectivityDownload offline maps, as cellular service is non-existent in many stretches of Highway 17.
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FoodPack a cooler with snacks and water, as dining options are limited between major towns.
Safety Tips
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WildlifeMoose are extremely common on the road; avoid driving at night at all costs.
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TowingEnsure your vehicle is in top mechanical condition before attempting this long-distance drive.
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Emergency KitCarry a satellite messenger or emergency beacon if traveling in winter.
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Road ConditionsCheck Ontario 511 for road closures due to forest fires or winter storms.
People Also Ask
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Is there a train to Thunder Bay?No, there is no passenger rail service to Thunder Bay.
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How long does it take to drive?It is a 16-18 hour drive, usually split over two days.
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Are there tolls?No, the Trans-Canada Highway is toll-free.
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What is the best month to drive?August offers the most stable weather.
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Is the scenery worth the drive?Yes, the Lake Superior coastline is one of the most beautiful drives in Canada.
Quick Info
- From Thorold, Ontario, Canada
- To Thunder Bay, Ontario, Canada
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Modes
Best Time to Travel
July and August for the best road conditions and access to hiking trails.
Things to Do in Thunder Bay
1
Sleeping Giant Provincial Park
Famous for its dramatic cliffs and hiking trails. It offers some of the best views of Lake Superior.
2
Kakabeka Falls
Known as the Niagara of the North, these massive falls are located just a short drive from the city.
3
Terry Fox Memorial
A moving tribute located on the Trans-Canada Highway, marking the spot where his Marathon of Hope ended.
4
Marina Park
The heart of the waterfront, featuring a splash pad, skating rink, and beautiful views of the Sleeping Giant.
Tags
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Trans-Canada Highway route
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