Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Sioux Falls, SD (FSD)

Flight distance from Rock Springs to Sioux Falls (Southwest Wyoming Regional Airport – Sioux Falls Regional Airport) is 643 miles / 1034 kilometers / 558 nautical miles. Estimated flight time is 1 hour 43 minutes.

Driving distance from Rock Springs (RKS) to Sioux Falls (FSD) is 821 miles / 1321 kilometers and travel time by car is about 14 hours 9 minutes.

Map of flight path and driving directions from Rock Springs to Sioux Falls.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Sioux Falls Regional Airport (FSD).

How far is Sioux Falls from Rock Springs?

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

Vincenty's formula (applied above)
  • 642.681 miles
  • 1034.295 kilometers
  • 558.475 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
  • 641.085 miles
  • 1031.727 kilometers
  • 557.088 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 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

B Sioux Falls Regional Airport
City: Sioux Falls, SD
Country: United States Flag of United States
IATA Code: FSD
ICAO Code: KFSD
Coordinates: 43°34′55″N, 96°44′30″W

Time difference and current local times

The time difference between Rock Springs and Sioux Falls is 1 hour. Sioux Falls is 1 hour ahead of Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Sioux Falls, SD

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 118 kg (260 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Sioux Falls (FSD).

Distance:
643
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
643

Round trip?