Distance between cities › Canada › Ontario › Cornwall, ON › Distance from Cornwall to Thunder Bay Book Hotels

Distance from Cornwall, ON to Thunder Bay, ON

Distance

1,479 km

Time

22 hours 26 mins

Gas Cost

$112 - $268

There are 1,166.25 km (724.67 miles) from Cornwall to Thunder Bay in northwest direction and 1,478.99 km (919 miles) by car, following the 17 route.

Cornwall and Thunder Bay are 22 hours 26 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Thunder Bay, ON. The halfway point is Blind River, ON.

Cornwall, ON and Thunder Bay, ON are in the same time zone (EDT). Current time in both locations is 5:53 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Cornwall, ON to Thunder Bay, ON:

Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Thunder Bay, ON? Here there are some offers to rent a car in Cornwall, ON

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cornwall »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 131.64 liters of gas to cover the route between Cornwall, ON and Thunder Bay, ON.

The estimated cost of gas to go from Cornwall to Thunder Bay is $198.78.

During the route, an average car will release 3,148.84 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.13 kilograms of CO₂ per kilometer.

Average Canada gas price used for calculation is $1.51 per liter of regular gas. Price last updated on March 5, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, ON and Thunder Bay, ON

If you want to meet halfway between Cornwall, ON and Thunder Bay, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.196751 and -82.988541, or 46º 11' 48.3036" N, 82º 59' 18.7476" W. This location is 459.54 miles away from Cornwall, ON and Thunder Bay, ON and it would take approximately 11 hours 13 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Blind River, ON, situated 467 miles from Cornwall, ON and 521 miles from Thunder Bay, ON. It would take 8 hours 35 mins to go from Cornwall to Blind River and 9 hours 49 mins to go from Thunder Bay to Blind River.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Cornwall, ON and Thunder Bay, ON in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	724.67 mi	1,166.25 km	629.72 nautical mi
Driving distance	919 mi	1,479.11 km	798.65 nautical mi

Road Trip Tips