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How far is St Louis, MO, from Fort Smith?

The distance between Fort Smith (Fort Smith Airport) and St Louis (St. Louis Lambert International Airport) is 1746 miles / 2809 kilometers / 1517 nautical miles.

The driving distance from Fort Smith (YSM) to St Louis (STL) is 2339 miles / 3764 kilometers, and travel time by car is about 48 hours 6 minutes.

Fort Smith Airport – St. Louis Lambert International Airport

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1746
Miles
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2809
Kilometers
Distance arrow
1517
Nautical miles

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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)
  • 1745.711 miles
  • 2809.450 kilometers
  • 1516.982 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
  • 1743.966 miles
  • 2806.641 kilometers
  • 1515.465 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 Airport to St. Louis Lambert International Airport is 3 hours and 48 minutes.

Flight carbon footprint between Fort Smith Airport (YSM) and St. Louis Lambert International Airport (STL)

On average, flying from Fort Smith to St Louis generates about 196 kg of CO2 per passenger, and 196 kilograms equals 432 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 Airport (YSM) and St. Louis Lambert International Airport (STL).

Airport information

Origin Fort Smith Airport
City: Fort Smith
Country: Canada Flag of Canada
IATA Code: YSM
ICAO Code: CYSM
Coordinates: 60°1′13″N, 111°57′43″W
Destination 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