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

Distance from Ottawa, ON to Cornwall, PE

Distance

1,226 km

Time

16 hours 30 mins

Gas Cost

$93 - $222

There are 970.19 km (602.85 miles) from Ottawa to Cornwall in east direction and 1,226.32 km (762 miles) by car, following the I-395 and ME 9 and ME 15 route.

Ottawa and Cornwall are 16 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Ottawa, ON to Cornwall, PE. The halfway point is Saint-Louis-du-Ha! Ha!, QC.

Please note the time difference between Ottawa, ON and Cornwall, PE is 1 hour. The current time in Ottawa is 9:17 pm and the current time in Cornwall is 10:17 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Ottawa, ON

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ottawa »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 109.13 liters of gas to cover the route between Ottawa, ON and Cornwall, PE.

The estimated cost of gas to go from Ottawa to Cornwall is $164.79.

During the route, an average car will release 2,610.40 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 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Ottawa, ON and Cornwall, PE

If you want to meet halfway between Ottawa, ON and Cornwall, PE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.681808 and -69.192444, or 47º 40' 54.5088" N, 69º 11' 32.7984" W. This location is 380.96 miles away from Ottawa, ON and Cornwall, PE and it would take approximately 8 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint-Louis-du-Ha! Ha!, QC, situated 420 miles from Ottawa, ON and 412 miles from Cornwall, PE. It would take 7 hours 3 mins to go from Ottawa to Saint-Louis-du-Ha! Ha! and 6 hours 50 mins to go from Cornwall to Saint-Louis-du-Ha! Ha!.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Ottawa, ON and Cornwall, PE in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	602.85 mi	970.19 km	523.86 nautical mi
Driving distance	762 mi	1,226.19 km	662.09 nautical mi

Road Trip Tips