How far is Fort Smith, AR, from St Louis, MO?
The distance between St Louis (St. Louis Lambert International Airport) and Fort Smith (Fort Smith Regional Airport) is 323 miles / 519 kilometers / 280 nautical miles.
The driving distance from St Louis (STL) to Fort Smith (FSM) is 423 miles / 681 kilometers, and travel time by car is about 7 hours 48 minutes.
St. Louis Lambert International Airport – Fort Smith Regional Airport
Search flights
Distance from St Louis to Fort Smith
There are several ways to calculate the distance from St Louis to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 322.715 miles
- 519.359 kilometers
- 280.431 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- 322.698 miles
- 519.332 kilometers
- 280.417 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 St Louis to Fort Smith?
The estimated flight time from St. Louis Lambert International Airport to Fort Smith Regional Airport is 1 hour and 6 minutes.
What is the time difference between St Louis and Fort Smith?
There is no time difference between St Louis and Fort Smith.
Flight carbon footprint between St. Louis Lambert International Airport (STL) and Fort Smith Regional Airport (FSM)
On average, flying from St Louis to Fort Smith generates about 73 kg of CO2 per passenger, and 73 kilograms equals 160 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from St Louis to Fort Smith
See the map of the shortest flight path between St. Louis Lambert International Airport (STL) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | St. Louis Lambert International Airport |
|---|---|
| City: | St Louis, MO |
| Country: | United States  |
| IATA Code: | STL |
| ICAO Code: | KSTL |
| Coordinates: | 38°44′55″N, 90°22′12″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 |