London, Ontario, Canada to Watertown, New York: Road Trip Guide & Distance

How far is London, Ontario, Canada from Watertown, New York?

The distance from London, Ontario, Canada to Watertown, New York is 275.5 miles (443.3 km) as the crow flies. Watertown, New York is located ENE of London, Ontario, Canada. By car, the driving distance is approximately 344.3 miles, taking about 6h 56min. A direct flight would take roughly 1h 3min. London, Ontario, Canada is in Ontario, Canada, while Watertown, New York is in New York, United States.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. Keep in mind this route crosses international borders. Don't forget your passport, and check current border crossing times and vehicle insurance requirements.

Coordinates come from public place data for London, Ontario, Canada and Watertown, New York. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.