How far is Fort Smith, AR, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Fort Smith (Fort Smith Regional Airport) is 433 miles / 696 kilometers / 376 nautical miles.
The driving distance from Decatur (DEC) to Fort Smith (FSM) is 559 miles / 899 kilometers, and travel time by car is about 10 hours 20 minutes.
Decatur Airport – Fort Smith Regional Airport
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Distance from Decatur to Fort Smith
There are several ways to calculate the distance from Decatur to Fort Smith. 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 Decatur to Fort Smith?
The estimated flight time from Decatur Airport to Fort Smith Regional Airport is 1 hour and 19 minutes.
What is the time difference between Decatur and Fort Smith?
Flight carbon footprint between Decatur Airport (DEC) and Fort Smith Regional Airport (FSM)
On average, flying from Decatur to Fort Smith 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 Decatur to Fort Smith
See the map of the shortest flight path between Decatur Airport (DEC) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″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 |