Air Miles Calculator

Distance between St Louis, MO (STL) and Rock Springs, WY (RKS)

Flight distance from St Louis to Rock Springs (St. Louis Lambert International Airport – Southwest Wyoming Regional Airport) is 1007 miles / 1620 kilometers / 875 nautical miles. Estimated flight time is 2 hours 24 minutes.

Driving distance from St Louis (STL) to Rock Springs (RKS) is 1126 miles / 1812 kilometers and travel time by car is about 18 hours 28 minutes.

Map of flight path and driving directions from St Louis to Rock Springs.

Shortest flight path between St. Louis Lambert International Airport (STL) and Southwest Wyoming Regional Airport (RKS).

How far is Rock Springs from St Louis?

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

Vincenty's formula (applied above)
  • 1006.668 miles
  • 1620.075 kilometers
  • 874.771 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
  • 1004.293 miles
  • 1616.252 kilometers
  • 872.706 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 Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W

Time difference and current local times

The time difference between St Louis and Rock Springs is 1 hour. Rock Springs is 1 hour behind St Louis.

Time Difference

St Louis, MO

 CST

Rock Springs, WY

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (333 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Rock Springs (RKS).

Distance:
1007
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1007

Round trip?