Air Miles Calculator

Distance between St Louis, MO (STL) and Fort Smith, AR (FSM)

Distance from St Louis to Fort Smith (St. Louis Lambert International Airport – Fort Smith Regional Airport) is 323 miles / 519 kilometers / 280 nautical miles.

How far is Fort Smith from St Louis?

There are several ways to calculate distances between St Louis and Fort Smith. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from St. Louis Lambert International Airport (STL) to Fort Smith Regional Airport (FSM) is 1 hour 6 minutes.

Time difference and current local times

There is no time difference between St Louis and Fort Smith.

Time Difference

St Louis
Fort Smith

St Louis, MO

 CST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 70 kg (155 pounds).

Airport information


A St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W

Map

St Louis to Fort Smith flight map.

Frequent Flyer Miles Calculator

St Louis (STL) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
323
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
323

Round trip?