How far is it from Deep River, ON, to Cornwall, ON, ?

The distance between Deep River, ON, and Cornwall, ON, is 293 km by road.

How long does it take to drive from Deep River, ON, to Cornwall, ON, ?

The drive from Deep River, ON, to Cornwall, ON, takes approximately 4 h by car.

The fastest route from Deep River, ON, to Cornwall, ON, covers 293 km with a driving time of approximately 4 h.

Cornwall, ON lies roughly to the south-east of Deep River, ON.

The drive from Deep River, ON to Cornwall, ON mainly follows 17, 417, 138. The longest single stretch is 134 km on 417.

Towns on the route from Deep River, ON to Cornwall, ON include Petawawa, Arnprior, Ottawa, Gatineau, South Stormont.

Distance: 293 kmDuration: 4 h

Driving from Deep River, ON to Cornwall, ON takes about 4 h via 417. The distance is 293 km. The straight-line distance is 246 km. EV charging is available along the route, including in Cornwall, ON. Driving directions

Driving directions13 · 293 km

The return trip from Cornwall, ON to Deep River, ON covers roughly the same distance, 293 km.

No notable attractions were found along this route.

Popular destinations close by

Distance and drive time are computed from OpenStreetMap road data with the OSRM routing engine. Updated September 2, 2026.

How far is it from Deep River, ON, {fromState} to Cornwall, ON, {toState}?: The distance between Deep River, ON, {fromState} and Cornwall, ON, {toState} is 293 km by road.
How long does it take to drive from Deep River, ON, {fromState} to Cornwall, ON, {toState}?: The drive from Deep River, ON, {fromState} to Cornwall, ON, {toState} takes approximately 4 h by car.
What is the best route from Deep River, ON, {fromState} to Cornwall, ON, {toState}?: The fastest route from Deep River, ON, {fromState} to Cornwall, ON, {toState} covers 293 km with a driving time of approximately 4 h.
Which direction is Cornwall, ON from Deep River, ON?: Cornwall, ON lies roughly to the south-east of Deep River, ON.
Which roads does the route from Deep River, ON to Cornwall, ON follow?: The drive from Deep River, ON to Cornwall, ON mainly follows 17, 417, 138. The longest single stretch is 134 km on 417.
Which towns do you pass between Deep River, ON and Cornwall, ON?: Towns on the route from Deep River, ON to Cornwall, ON include Petawawa, Arnprior, Ottawa, Gatineau, South Stormont.