How far is Watertown, SD, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Watertown (Watertown Regional Airport) is 677 miles / 1089 kilometers / 588 nautical miles.
The driving distance from Fort Smith (FSM) to Watertown (ATY) is 757 miles / 1219 kilometers, and travel time by car is about 13 hours 36 minutes.
Fort Smith Regional Airport – Watertown Regional Airport
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Distance from Fort Smith to Watertown
There are several ways to calculate the distance from Fort Smith to Watertown. Here are two standard methods:
Vincenty's formula (applied above)- 676.968 miles
- 1089.475 kilometers
- 588.269 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- 677.804 miles
- 1090.820 kilometers
- 588.995 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 Watertown?
The estimated flight time from Fort Smith Regional Airport to Watertown Regional Airport is 1 hour and 46 minutes.
What is the time difference between Fort Smith and Watertown?
There is no time difference between Fort Smith and Watertown.
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Watertown Regional Airport (ATY)
On average, flying from Fort Smith to Watertown generates about 122 kg of CO2 per passenger, and 122 kilograms equals 269 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 Watertown
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Watertown Regional Airport (ATY).
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 | Watertown Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°9′16″W |