How far is Decatur, IL, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Decatur (Decatur Airport) is 433 miles / 696 kilometers / 376 nautical miles.
The driving distance from Fort Smith (FSM) to Decatur (DEC) is 558 miles / 898 kilometers, and travel time by car is about 10 hours 18 minutes.
Fort Smith Regional Airport – Decatur Airport
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Distance from Fort Smith to Decatur
There are several ways to calculate the distance from Fort Smith to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 432.715 miles
- 696.387 kilometers
- 376.019 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- 432.633 miles
- 696.255 kilometers
- 375.947 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 Decatur?
The estimated flight time from Fort Smith Regional Airport to Decatur Airport is 1 hour and 19 minutes.
What is the time difference between Fort Smith and Decatur?
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Decatur Airport (DEC)
On average, flying from Fort Smith to Decatur generates about 89 kg of CO2 per passenger, and 89 kilograms equals 196 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 Decatur
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Decatur Airport (DEC).
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 | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |