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

Distance from Cornwall, ON to Onaping Falls, ON

Distance

621 km

Time

8 hours 51 mins

Gas Cost

$47 - $113

There are 543.36 km (337.63 miles) from Cornwall to Onaping Falls in northwest direction and 621.21 km (386 miles) by car, following the 17 route.

Cornwall and Onaping Falls are 8 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, ON to Onaping Falls, ON. The halfway point is Mackey, ON.

Cornwall, ON and Onaping Falls, ON are in the same time zone (EDT). Current time in both locations is 4:50 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Cornwall, ON

Planning on renting a car to go from Cornwall, ON to Onaping Falls, 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 55.31 liters of gas to cover the route between Cornwall, ON and Onaping Falls, ON.

The estimated cost of gas to go from Cornwall to Onaping Falls is $83.51.

During the route, an average car will release 1,322.96 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 Cornwall, ON and Onaping Falls, ON

If you want to meet halfway between Cornwall, ON and Onaping Falls, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.187054 and -77.848991, or 46º 11' 13.3944" N, 77º 50' 56.3676" W. This location is 193.07 miles away from Cornwall, ON and Onaping Falls, ON and it would take approximately 4 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mackey, ON, situated 200 miles from Cornwall, ON and 187 miles from Onaping Falls, ON. It would take 3 hours 36 mins to go from Cornwall to Mackey and 3 hours 37 mins to go from Onaping Falls to Mackey.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Cornwall, ON and Onaping Falls, ON in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	337.63 mi	543.36 km	293.39 nautical mi
Driving distance	386 mi	621.44 km	335.55 nautical mi

Road Trip Tips