Boulder to Sioux Falls: Road Trip Guide & Distance
How far is Boulder from Sioux Falls?
The distance from Boulder to Sioux Falls is 502.8 miles (809.2 km) as the crow flies. Sioux Falls is located ENE of Boulder. By car, the driving distance is approximately 603.4 miles, taking about 12h 8min. A direct flight would take roughly 1h 31min. Both are located in United States — Boulder in Colorado and Sioux Falls in South Dakota.
This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. 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 Boulder and Sioux Falls. 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.
How to Get from Boulder to Sioux Falls
Quick Facts
Did You Know?
- At walking speed (3 mph), it would take about 168 hours of non-stop walking
- By bicycle at 12 mph, the journey would take roughly 42 hours
- You could travel this distance about 49.5 times to circle the Earth's equator