How far is Fort Smith, AR, from Rock Springs, WY?
The distance between Rock Springs (Southwest Wyoming Regional Airport) and Fort Smith (Fort Smith Regional Airport) is 905 miles / 1456 kilometers / 786 nautical miles.
The driving distance from Rock Springs (RKS) to Fort Smith (FSM) is 1137 miles / 1830 kilometers, and travel time by car is about 19 hours 43 minutes.
Southwest Wyoming Regional Airport – Fort Smith Regional Airport
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Distance from Rock Springs to Fort Smith
There are several ways to calculate the distance from Rock Springs to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 904.655 miles
- 1455.901 kilometers
- 786.124 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 903.324 miles
- 1453.759 kilometers
- 784.967 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).
How long does it take to fly from Rock Springs to Fort Smith?
The estimated flight time from Southwest Wyoming Regional Airport to Fort Smith Regional Airport is 2 hours and 12 minutes.
What is the time difference between Rock Springs and Fort Smith?
Flight carbon footprint between Southwest Wyoming Regional Airport (RKS) and Fort Smith Regional Airport (FSM)
On average, flying from Rock Springs to Fort Smith generates about 144 kg of CO2 per passenger, and 144 kilograms equals 317 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rock Springs to Fort Smith
See the map of the shortest flight path between Southwest Wyoming Regional Airport (RKS) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | 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 |
| Destination | Fort Smith Regional Airport |
|---|---|
| City: | Fort Smith, AR |
| Country: | United States |
| IATA Code: | FSM |
| ICAO Code: | KFSM |
| Coordinates: | 35°20′11″N, 94°22′2″W |