How far is St Louis, MO, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and St Louis (St. Louis Lambert International Airport) is 323 miles / 519 kilometers / 280 nautical miles.
The driving distance from Fort Smith (FSM) to St Louis (STL) is 423 miles / 681 kilometers, and travel time by car is about 7 hours 44 minutes.
Fort Smith Regional Airport – St. Louis Lambert International Airport
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Distance from Fort Smith to St Louis
There are several ways to calculate the distance from Fort Smith to St Louis. 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 Fort Smith to St Louis?
The estimated flight time from Fort Smith Regional Airport to St. Louis Lambert International Airport is 1 hour and 6 minutes.
What is the time difference between Fort Smith and St Louis?
There is no time difference between Fort Smith and St Louis.
Flight carbon footprint between Fort Smith Regional Airport (FSM) and St. Louis Lambert International Airport (STL)
On average, flying from Fort Smith to St Louis 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 Fort Smith to St Louis
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and St. Louis Lambert International Airport (STL).
Airport information
| Origin | 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 |
| Destination | 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 |