Driving route · Canada

Route from Thunder Bay to Thedford

Interactive map, distance, and indicative drive time for the route from Thunder Bay to Thedford — with the live planner for up-to-date turn-by-turn directions.

This page provides the map and indicative distance data for the route between Thunder Bay (Ontario) and Thedford (Ontario). Use the live planner below to get up-to-date driving directions by car, on foot, or by bicycle.

Distance from Thunder Bay to Thedford

The straight-line distance between Thunder Bay and Thedford is 815.1 km. The estimated road distance by car is around 921 km, with an indicative drive time of 10 h 14 min.

Straight-line distance 815.1 km
Estimated road distance ~921 km
Indicative drive time 10 h 14 min
Note: values are approximate estimates. Road distance is calculated by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). Drive time assumes ~90 km/h average. Real traffic, tolls, and conditions can vary significantly. Use the live planner for current data.

Trip cost and route type: Thunder Bay – Thedford

Route type Long

Long route (over 300 km) — plan a break roughly every 2 hours and check highway traffic and weather.

Indicative fuel cost $103–$140

Estimate: ~921 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Thunder Bay to Thedford

The map shows the locations of Thunder Bay (A) and Thedford (B). Use the form below to calculate the up-to-date road route with turn-by-turn directions, real distance, and estimated drive time.

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Driving directions from Thunder Bay to Thedford

Real distance: 1,335.2 km  ·  Estimated time: 17 h 32 min

🗓 Calculated on June 4, 2026
  1. Drive east. 46 m
  2. Turn left onto May Street South. 2.0 km
  3. Bear right onto Memorial Avenue. 762 m
  4. Turn left onto Harbour Expressway. 2.8 km
  5. Bear right toward Cochrane/Sault Ste. Marie. 690.1 km
  6. Turn right onto Fifth Line East. 1.5 km
  7. Turn left onto Old Goulais Bay Road. 1.6 km
  8. Turn right onto Fourth Line East. 790 m
  9. Turn left onto Peoples Road. 4.3 km
  10. Turn left onto Wellington Street West. 517 m
  11. Turn right onto Huron Street. 675 m
  12. Turn right onto International Crossing. 236.8 km

Standard car route without avoiding highways. For advanced options (motorcycle, bicycle, transit, avoid tolls) use the live planner above.

Estimate trip cost: Thunder Bay – Thedford

Litres estimated
Fuel cost
Toll estimate
Total estimate
Range ±15%

Indicative estimates based on ~921 km. Tolls calculated at ~$0.10/km on tolled segments. The calculator updates with the live planner's real distance. Actual consumption, driving style, weather, and toll rates vary.

Origin and destination

Origin

Thunder Bay

Ontario · 48.38220, -89.24610

Thunder Bay sits on the northwestern shore of Lake Superior in Ontario and functions as the principal urban centre for a broad portion of northwestern Ontario. The city's waterfront and built-up area form the focus for…

Destination

Thedford

Ontario · 43.16460, -81.85040

Thedford is a small inland community in southwestern Ontario, positioned in a rural agricultural plain a short distance inland from the Lake Huron shoreline. On provincial maps it appears as a compact village serving…

How to drive from Thunder Bay to Thedford

The straight-line distance between Thunder Bay (Ontario) and Thedford (Ontario) is about 815.1 km. The actual road distance varies by chosen route, road type, and travel conditions — especially in winter and across mountain or northern segments.

Before you leave, consider:

  • Check current traffic with a navigation app — particularly around major cities.
  • Look up any toll segments on your route (Ontario 407, select bridges).
  • In winter or at higher elevations, drive times and conditions can change quickly. Carry a charged phone, fuel reserve, and weather-appropriate gear.
  • Plan stops at service centres or towns along the way — fuel and rest stops can be sparse on remote sections.

Route description: Thunder Bay – Thedford

Planning a trip from Thunder Bay to Thedford means budgeting around 921 km on the road and an indicative drive time of 10 h 14 min by car. The route stays within Ontario and falls into a long route (over 300 km). Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections.

Practical tips for the Thunder Bay – Thedford drive

Terrain along the way

The route stays within Ontario, Great Lakes shoreline in the south, Canadian Shield forests across the north.

When to leave

For a long route, leave early (before 06:30) or wait until after 10:00. Avoid summer long-weekend exoduses and major holidays. Plan a break every 1.5–2 hours of driving — and check weather, especially across the Prairies and through mountain passes.

Alternatives

For this route of about 921 km, consider VIA Rail Canada — VIA's Corridor service connects many Eastern Canadian cities, and the long-distance trains (the Canadian, Ocean) run through the Prairies and the Maritimes. Cross-border trips may also include Amtrak's Adirondack or Cascades. Check schedules at viarail.ca and amtrak.com.

Explore Thedford

Full information about Thedford: interactive map, GPS coordinates, elevation, nearby cities, and routes to and from Thedford.

Thedford profile →

Explore Thunder Bay

Full information about Thunder Bay: map, GPS coordinates, and all routes from Thunder Bay to other Canadian cities.

Thunder Bay profile →

Related tools

Cities along the Thunder Bay – Thedford route

These cities are near the direct route between Thunder Bay and Thedford. They may be useful as a stopover or alternate destination.

Routes with intermediate stops: Thunder Bay → Sault Ste. Marie

Related routes

From Thunder Bay to other cities:

To Thedford from other cities:

From Thedford to intermediate cities:

All info about Thunder Bay →  ·  All info about Thedford →

Similar-distance routes from Thunder Bay

Other routes from Thunder Bay with comparable distance (489–1141 km straight line).

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Frequently asked questions: Thunder Bay – Thedford

What is the straight-line distance between Thunder Bay and Thedford?

The straight-line distance between Thunder Bay and Thedford is about 815.1 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Thunder Bay to Thedford?

The estimated road distance from Thunder Bay to Thedford is about 921 km — derived by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). For an up-to-date route, use the live planner.

How long does it take to drive from Thunder Bay to Thedford?

Indicative drive time from Thunder Bay to Thedford is about 10 h 14 min, based on an average highway speed of 90 km/h on a mixed motorway/highway profile. Real time depends on traffic, weather, stops, vehicle type, and conditions.

How do I get up-to-date driving directions from Thunder Bay to Thedford?

Use the live planner on this page: select your transport mode and click "Update route". You'll see the route with turn-by-turn directions, current distance, and estimated time based on up-to-date routing data.

Does the Thunder Bay–Thedford route involve highway tolls?

CanadaDrivingDirections.com does not provide toll details. Toll roads are limited in Canada — Ontario's 407 ETR, a few Quebec bridges, and the Confederation Bridge to PEI are the main ones. Check the operator's site for current pricing.

How does traffic affect the route from Thunder Bay to Thedford?

Traffic varies by time of day, season, and weather. The live planner uses up-to-date routing data; for live traffic, use a navigation app before departure — especially in winter when conditions can change rapidly.

Is there an alternative route from Thunder Bay to Thedford?

A common alternative is going via Sault Ste. Marie. Use the live planner to compare routes.

Can I open the Thunder Bay–Thedford route in Google Maps?

Yes. Click "Open in Google Maps" on this page to view the route in the Google Maps app or browser. You can also open Google Maps directly and enter Thunder Bay as origin and Thedford as destination.