Air Miles Calculator

Distance between Chicago, IL (MDW) and Fort Smith, AR (FSM)

Distance from Chicago to Fort Smith (Midway International Airport – Fort Smith Regional Airport) is 571 miles / 919 kilometers / 496 nautical miles.

How far is Fort Smith from Chicago?

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

Vincenty's formula (applied above)
  • 570.785 miles
  • 918.590 kilometers
  • 495.999 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
  • 570.831 miles
  • 918.664 kilometers
  • 496.039 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 Midway International Airport (MDW) to Fort Smith Regional Airport (FSM) is 1 hour 34 minutes.

Time difference and current local times

There is no time difference between Chicago and Fort Smith.

Time Difference

Chicago
Fort Smith

Chicago, IL

 CST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 109 kg (240 pounds).

Airport information


A Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″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

Map

Chicago to Fort Smith flight map.

Frequent Flyer Miles Calculator

Chicago (MDW) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
571
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
571

Round trip?