How far is Fort Smith, AR, from Riverton, WY?
The distance between Riverton (Central Wyoming Regional Airport) and Fort Smith (Fort Smith Regional Airport) is 923 miles / 1486 kilometers / 802 nautical miles.
The driving distance from Riverton (RIW) to Fort Smith (FSM) is 1158 miles / 1863 kilometers, and travel time by car is about 21 hours 18 minutes.
Central Wyoming Regional Airport – Fort Smith Regional Airport
Search flights
Distance from Riverton to Fort Smith
There are several ways to calculate the distance from Riverton to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 923.358 miles
- 1486.000 kilometers
- 802.376 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- 922.337 miles
- 1484.357 kilometers
- 801.489 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 Riverton to Fort Smith?
The estimated flight time from Central Wyoming Regional Airport to Fort Smith Regional Airport is 2 hours and 14 minutes.
What is the time difference between Riverton and Fort Smith?
Flight carbon footprint between Central Wyoming Regional Airport (RIW) and Fort Smith Regional Airport (FSM)
On average, flying from Riverton to Fort Smith generates about 145 kg of CO2 per passenger, and 145 kilograms equals 320 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Riverton to Fort Smith
See the map of the shortest flight path between Central Wyoming Regional Airport (RIW) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | Central Wyoming Regional Airport |
|---|---|
| City: | Riverton, WY |
| Country: | United States  |
| IATA Code: | RIW |
| ICAO Code: | KRIW |
| Coordinates: | 43°3′51″N, 108°27′35″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 |