Distance from Ottawa to London

The straight-line (great-circle) distance between Ottawa and London is 519 kilometres, roughly 1 h 7 min by plane at 850 km/h. By road it is about 628 km via Highway 401, which takes around 7 h 20 min of driving without stops. The map below shows both routes, and the calculator recomputes them for any other pair of places.

Straight line519 km
By road628 km
Driving time7 h 20 min
Flight time1 h 7 min

About this page

This page is for anyone planning a trip from Ottawa to London, 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 London?
In a straight line it is 519 km. By road it is about 628 km, roughly 7 h 20 min of driving.
How long is the flight from Ottawa to London?
Roughly 1 h 7 min: the distance at a cruising speed of 850 km/h plus about 30 minutes for take-off and landing.
How many kilometres by road between Ottawa and London?
About 628 km on the fastest route via Highway 401, which takes around 7 h 20 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.