Boulder to Rapid City: Road Trip Guide & Distance

How far is Boulder from Rapid City?

The distance from Boulder to Rapid City is 299.7 miles (482.4 km) as the crow flies. Rapid City is located NNE of Boulder. By car, the driving distance is approximately 374.7 miles, taking about 7h 32min. A direct flight would take roughly 1h 6min. Both are located in United States — Boulder in Colorado and Rapid City in South Dakota.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. 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 Rapid City. 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.