Air Miles Calculator

Distance between St Louis, MO (STL) and Rapid City, SD (RAP)

Flight distance from St Louis to Rapid City (St. Louis Lambert International Airport – Rapid City Regional Airport) is 753 miles / 1211 kilometers / 654 nautical miles. Estimated flight time is 1 hour 55 minutes.

Driving distance from St Louis (STL) to Rapid City (RAP) is 940 miles / 1512 kilometers and travel time by car is about 15 hours 22 minutes.

Map of flight path and driving directions from St Louis to Rapid City.

Shortest flight path between St. Louis Lambert International Airport (STL) and Rapid City Regional Airport (RAP).

How far is Rapid City from St Louis?

There are several ways to calculate distances between St Louis and Rapid City. Here are two common methods:

Vincenty's formula (applied above)
  • 752.616 miles
  • 1211.219 kilometers
  • 654.006 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 751.347 miles
  • 1209.177 kilometers
  • 652.903 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Airport information


A St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Rapid City Regional Airport
City: Rapid City, SD
Country: United States Flag of United States
IATA Code: RAP
ICAO Code: KRAP
Coordinates: 44°2′43″N, 103°3′25″W

Time difference and current local times

The time difference between St Louis and Rapid City is 1 hour. Rapid City is 1 hour behind St Louis.

Time Difference

St Louis, MO

 CST

Rapid City, SD

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 130 kg (287 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Rapid City (RAP).

Distance:
753
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
753

Round trip?