Rapid City to Saint Peters, Missouri: Road Trip Guide & Distance

How far is Rapid City from Saint Peters, Missouri?

The distance from Rapid City to Saint Peters, Missouri is 746.7 miles (1201.7 km) as the crow flies. Saint Peters, Missouri is located ESE of Rapid City. By car, the driving distance is approximately 896 miles, taking about 18h 2min. A direct flight would take roughly 2h 0min. Both are located in United States — Rapid City in South Dakota and Saint Peters, Missouri in Missouri.

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. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Rapid City and Saint Peters, Missouri. 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.