Rapid City to Rock Springs: Road Trip Guide & Distance

348 miles 560.1 km · straight line
417.6 miles estimated 672.1 km · driving distance
8h 24min estimated drive time
$40 - $49 estimated fuel cost
~1h 12min flight time
242° WSW bearing direction

How far is Rapid City from Rock Springs?

The distance from Rapid City to Rock Springs is 348 miles (560.1 km) as the crow flies. Rock Springs is located WSW of Rapid City. By car, the driving distance is approximately 417.6 miles, taking about 8h 24min. A direct flight would take roughly 1h 12min. Both are located in United States — Rapid City in South Dakota and Rock Springs in Wyoming.

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. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Rapid City and Rock Springs. 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 Rapid City to Rock Springs

Method Time Est. Cost Best For
Drive 8h 24min $40 - $49 Flexible stops
Fly ~1h 12min $80–200* Speed
Bus ~10h 5min $33–$63* Budget
Train ~7h 59min $50–$146* Comfort

Suggested Stops Between Rapid City & Rock Springs

Quick Facts

Rapid City
44.08°N, 103.23°W
America/Chicago
966m elevation
Rock Springs
41.59°N, 109.20°W
America/Denver
1947m elevation
Explore more routes from Rock Springs

Did You Know?

  • At walking speed (3 mph), it would take about 116 hours of non-stop walking
  • By bicycle at 12 mph, the journey would take roughly 29 hours
  • You could travel this distance about 71.5 times to circle the Earth's equator
Data Sources & Estimate Notes GeoNames · OpenStreetMap · Driving distance estimated using road factor coefficients