# 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
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
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.

MDT

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?