Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Great Falls, MT (GTF)

Flight distance from Rock Springs to Great Falls (Southwest Wyoming Regional Airport – Great Falls International Airport) is 422 miles / 679 kilometers / 367 nautical miles. Estimated flight time is 1 hour 17 minutes.

Driving distance from Rock Springs (RKS) to Great Falls (GTF) is 549 miles / 883 kilometers and travel time by car is about 11 hours 8 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Great Falls International Airport (GTF).

How far is Great Falls from Rock Springs?

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

Vincenty's formula (applied above)
  • 422.139 miles
  • 679.367 kilometers
  • 366.829 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
  • 422.309 miles
  • 679.641 kilometers
  • 366.977 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 Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W

Time difference and current local times

There is no time difference between Rock Springs and Great Falls.

Time Difference

Rock Springs, WY

 MDT

Great Falls, MT

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 87 kg (192 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Great Falls (GTF).

Distance:
422
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
422

Round trip?