Portsmouth, New Hampshire to Thetford-Mines: Road Trip Guide & Distance

How far is Portsmouth, New Hampshire from Thetford-Mines?

The distance from Portsmouth, New Hampshire to Thetford-Mines is 210.1 miles (338.2 km) as the crow flies. Thetford-Mines is located N of Portsmouth, New Hampshire. By car, the driving distance is approximately 262.7 miles, taking about 5h 17min. A direct flight would take roughly 55min. Portsmouth, New Hampshire is in New Hampshire, United States, while Thetford-Mines is in Quebec, Canada.

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. 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 Portsmouth, New Hampshire and Thetford-Mines. 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.