Air Miles Calculator

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

Flight distance from Chicago to Fort Smith (Chicago O'Hare International Airport – Fort Smith Regional Airport) is 576 miles / 927 kilometers / 500 nautical miles. Estimated flight time is 1 hour 35 minutes.

Driving distance from Chicago (ORD) to Fort Smith (FSM) is 713 miles / 1148 kilometers and travel time by car is about 12 hours 31 minutes.

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

Shortest flight path between Chicago O'Hare International Airport (ORD) and Fort Smith Regional Airport (FSM).

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)
  • 575.869 miles
  • 926.772 kilometers
  • 500.417 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
  • 575.969 miles
  • 926.932 kilometers
  • 500.503 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″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

There is no time difference between Chicago and Fort Smith.

Time Difference

Chicago, IL

 CST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 110 kg (242 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Fort Smith (FSM).

Distance:
576
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
576

Round trip?