Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Grand Forks, ND (GFK)

Flight distance from Rock Springs to Grand Forks (Southwest Wyoming Regional Airport – Grand Forks International Airport) is 730 miles / 1174 kilometers / 634 nautical miles. Estimated flight time is 1 hour 52 minutes.

Driving distance from Rock Springs (RKS) to Grand Forks (GFK) is 1011 miles / 1627 kilometers and travel time by car is about 17 hours 59 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Grand Forks International Airport (GFK).

How far is Grand Forks from Rock Springs?

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

Vincenty's formula (applied above)
  • 729.755 miles
  • 1174.427 kilometers
  • 634.140 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
  • 728.625 miles
  • 1172.608 kilometers
  • 633.158 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 Grand Forks International Airport
City: Grand Forks, ND
Country: United States Flag of United States
IATA Code: GFK
ICAO Code: KGFK
Coordinates: 47°56′57″N, 97°10′33″W

Time difference and current local times

The time difference between Rock Springs and Grand Forks is 1 hour. Grand Forks is 1 hour ahead of Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Grand Forks, ND

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 128 kg (282 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Grand Forks (GFK).

Distance:
730
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
730

Round trip?