Air Miles Calculator

Distance between Casper, WY (CPR) and Rock Springs, WY (RKS)

Flight distance from Casper to Rock Springs (Casper–Natrona County International Airport – Southwest Wyoming Regional Airport) is 161 miles / 260 kilometers / 140 nautical miles. Estimated flight time is 48 minutes.

Driving distance from Casper (CPR) to Rock Springs (RKS) is 227 miles / 365 kilometers and travel time by car is about 4 hours 27 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Southwest Wyoming Regional Airport (RKS).

How far is Rock Springs from Casper?

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

Vincenty's formula (applied above)
  • 161.269 miles
  • 259.537 kilometers
  • 140.139 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
  • 161.032 miles
  • 259.156 kilometers
  • 139.933 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 Casper–Natrona County International Airport
City: Casper, WY
Country: United States Flag of United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″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

There is no time difference between Casper and Rock Springs.

Time Difference

Casper, WY

 MST

Rock Springs, WY

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 49 kg (107 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Rock Springs (RKS).

Distance:
161
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
161

Round trip?