Thornbury
Thornbury
Thunder Bay
Thunder Bay
Flight Driving

Thornbury to Thunder Bay

Updated: 30 May 2026

The journey from Thornbury to Thunder Bay is a massive 1,300-kilometer trek. You will travel north to Sudbury and then west along the Trans-Canada Highway (Highway 17). This drive takes approximately 14 hours of pure driving time. You are crossing the vast wilderness of Northern Ontario. It is a bucket-list road trip for many, offering stunning views of Lake Superior.

Total Distance: 1,300 km driving distance; 850 km straight-line air distance.
Fastest Way
Flying from Toronto Pearson is the fastest way to reach Thunder Bay.
Cheapest Way
Driving is the cheapest option if you are traveling with multiple people.
Compare Thornbury to Thunder Bay Routes
Flight
Connecting
Driving
Direct
Duration 4 hours 14 hours
Avg Price 400-600 CAD 200-250 CAD
Operator Air Canada Personal Vehicle
Route Toronto Pearson (YYZ) to Thunder Bay (YQT). Highway 400 to 69 to 17 West.
Tip You must drive to Toronto Pearson to catch this flight. This is a multi-day trip; plan to stay overnight in Sault Ste. Marie or Wawa.
Travel Tips
  • Plan Your Stops
    Gas stations can be 100km apart on the Trans-Canada; never let your tank drop below half.
  • Wildlife
    Moose are common on the road; avoid driving at night at all costs.
  • Accommodation
    Book hotels in advance, especially during the summer tourist season.
  • Connectivity
    Expect long stretches with no cell service; download maps and music.
  • Emergency Supplies
    Carry a full emergency kit, including extra food, water, and warm clothing.
Safety Tips
  • Driver Fatigue
    This is a long drive; do not attempt it in one day.
  • Road Conditions
    Check Ontario 511 for road closures due to weather or accidents.
  • Vehicle Maintenance
    Get a full vehicle inspection before leaving on this long journey.
  • Emergency Communication
    Consider carrying a satellite messenger if you are traveling solo.
People Also Ask
  • How long is the drive to Thunder Bay?
    It takes about 14 hours of driving time.
  • Is there a train to Thunder Bay?
    No, there is no passenger rail service to Thunder Bay.
  • What is the best way to travel?
    Flying is the fastest, but driving is the most scenic.
  • Are there tolls?
    No, the Trans-Canada Highway is toll-free.
  • Is it safe to drive alone?
    It is safe, but you must be well-prepared for remote conditions.
Quick Info
  • From Thornbury, Ontario, Canada
  • To Thunder Bay, Ontario, Canada
  • Modes
Best Time to Travel

Summer is the best time for this long drive to ensure clear roads and daylight.

Things to Do in Thunder Bay
1
Sleeping Giant Provincial Park
Famous for its unique rock formation that looks like a giant lying on its back. It offers incredible hiking.
2
Kakabeka Falls
Known as the Niagara of the North. It is a spectacular waterfall just outside the city.
3
Terry Fox Memorial
A moving tribute to the Canadian hero. It offers a great view of the city and Lake Superior.
4
Marina Park
A beautiful waterfront area with walking paths and views of the Sleeping Giant.
Tags
Thornbury to Thunder Bay driving to Thunder Bay best route Thornbury to Thunder Bay Ontario road trip Thunder Bay travel Highway 17 to Thunder Bay distance Thornbury to Thunder Bay Northern Ontario travel