How far is Fort Smith, AR, from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Fort Smith (Fort Smith Regional Airport) is 965 miles / 1552 kilometers / 838 nautical miles.
The driving distance from Washington D.C. (IAD) to Fort Smith (FSM) is 1151 miles / 1852 kilometers, and travel time by car is about 20 hours 51 minutes.
Washington Dulles International Airport – Fort Smith Regional Airport
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Distance from Washington D.C. to Fort Smith
There are several ways to calculate the distance from Washington D.C. to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 964.619 miles
- 1552.404 kilometers
- 838.231 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- 962.640 miles
- 1549.219 kilometers
- 836.511 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 Washington D.C. to Fort Smith?
The estimated flight time from Washington Dulles International Airport to Fort Smith Regional Airport is 2 hours and 19 minutes.
What is the time difference between Washington D.C. and Fort Smith?
Flight carbon footprint between Washington Dulles International Airport (IAD) and Fort Smith Regional Airport (FSM)
On average, flying from Washington D.C. to Fort Smith generates about 148 kg of CO2 per passenger, and 148 kilograms equals 327 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Washington D.C. to Fort Smith
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Fort Smith Regional Airport (FSM).
Airport information
| Origin | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States  |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″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 |