Bismarck to Watertown, South Dakota: Road Trip Guide & Distance

How far is Bismarck from Watertown, South Dakota?

The distance from Bismarck to Watertown, South Dakota is 220.3 miles (354.6 km) as the crow flies. Watertown, South Dakota is located SE of Bismarck. By car, the driving distance is approximately 275.5 miles, taking about 5h 32min. A direct flight would take roughly 57min. Both are located in United States — Bismarck in North Dakota and Watertown, South Dakota in South Dakota.

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.

Coordinates come from public place data for Bismarck and Watertown, South Dakota. 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.