Distance from Ottawa to Montreal

The straight-line (great-circle) distance between Ottawa and Montreal is 166.5 kilometres, roughly 24 min by plane at 850 km/h. By road it is about 198 km via Autoroute Félix-Leclerc and Highway 417, which takes around 2 h 30 min of driving without stops. The map below shows both routes, and the calculator recomputes them for any other pair of places.

Straight line166.5 km
By road198 km
Driving time2 h 30 min
Flight time24 min

About this page

This page is for anyone planning a trip from Ottawa to Montreal, in Canada. The straight-line distance comes from the haversine formula (great-circle distance). The road distance and driving time are the fastest car route on the OpenStreetMap road network, computed with OSRM; the actual time depends on traffic, stops and the roads you choose. Tap "Calculate distance" in the calculator to redraw the route live.

Frequently asked questions

What is the distance from Ottawa to Montreal?
In a straight line it is 166.5 km. By road it is about 198 km, roughly 2 h 30 min of driving.
How long is the flight from Ottawa to Montreal?
Roughly 24 min: the distance at a cruising speed of 850 km/h plus about 12 minutes for take-off and landing.
How many kilometres by road between Ottawa and Montreal?
About 198 km on the fastest route via Autoroute Félix-Leclerc and Highway 417, which takes around 2 h 30 min by car. Tap "Calculate distance" in the calculator to see the route on the map.
How is this distance calculated?
The straight-line distance uses the haversine formula, which gives the shortest path between two points on the Earth's surface.