Air Miles Calculator

Distance between Oklahoma City, OK (OKC) and Fort Smith, AR (FSM)

Distance from Oklahoma City to Fort Smith (Will Rogers World Airport – Fort Smith Regional Airport) is 183 miles / 294 kilometers / 159 nautical miles.

How far is Fort Smith from Oklahoma City?

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

Vincenty's formula (applied above)
  • 182.621 miles
  • 293.900 kilometers
  • 158.693 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
  • 182.212 miles
  • 293.242 kilometers
  • 158.338 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).

Flight duration

Estimated flight time from Will Rogers World Airport (OKC) to Fort Smith Regional Airport (FSM) is 50 minutes.

Time difference and current local times

There is no time difference between Oklahoma City and Fort Smith.

Time Difference

Oklahoma City
Fort Smith

Oklahoma City, OK

 CDT

Fort Smith, AR

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 50 kg (111 pounds).

Airport information


A Will Rogers World Airport
City: Oklahoma City, OK
Country: United States Flag of United States
IATA Code: OKC
ICAO Code: KOKC
Coordinates: 35°23′35″N, 97°36′2″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

Oklahoma City to Fort Smith flight path

Shortest flight path between Will Rogers World Airport (OKC) and Fort Smith Regional Airport (FSM).

Frequent Flyer Miles Calculator

Oklahoma City (OKC) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
183
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
183

Round trip?