Air Miles Calculator

Distance between Watertown, NY (ART) and Fort Smith, AR (FSM)

Flight distance from Watertown to Fort Smith (Watertown International Airport – Fort Smith Regional Airport) is 1142 miles / 1838 kilometers / 992 nautical miles. Estimated flight time is 2 hours 39 minutes.

Driving distance from Watertown (ART) to Fort Smith (FSM) is 1368 miles / 2202 kilometers and travel time by car is about 24 hours 10 minutes.

Map of flight path and driving directions from Watertown to Fort Smith.

Shortest flight path between Watertown International Airport (ART) and Fort Smith Regional Airport (FSM).

How far is Fort Smith from Watertown?

There are several ways to calculate distances between Watertown and Fort Smith. Here are two common methods:

Vincenty's formula (applied above)
  • 1142.146 miles
  • 1838.106 kilometers
  • 992.498 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 1140.560 miles
  • 1835.554 kilometers
  • 991.120 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).

Airport information


A Watertown International Airport
City: Watertown, NY
Country: United States Flag of United States
IATA Code: ART
ICAO Code: KART
Coordinates: 43°59′30″N, 76°1′18″W

B Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W

Time difference and current local times

The time difference between Watertown and Fort Smith is 1 hour. Fort Smith is 1 hour behind Watertown.

Time Difference

Watertown, NY

 EDT

Fort Smith, AR

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 159 kg (350 pounds).

Frequent Flyer Miles Calculator

Watertown (ART) → Fort Smith (FSM).

Distance:
1142
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1142

Round trip?