Air Miles Calculator

Distance between Sioux City, IA (SUX) and Fort Smith, AR (FSM)

Distance from Sioux City to Fort Smith (Sioux Gateway Airport – Fort Smith Regional Airport) is 499 miles / 804 kilometers / 434 nautical miles.

How far is Fort Smith from Sioux City?

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

Vincenty's formula (applied above)
  • 499.360 miles
  • 803.641 kilometers
  • 433.932 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
  • 500.081 miles
  • 804.803 kilometers
  • 434.559 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 Sioux Gateway Airport (SUX) to Fort Smith Regional Airport (FSM) is 1 hour 26 minutes.

Time difference and current local times

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

Time Difference

Sioux City
Fort Smith

Sioux City, IA

 CST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 99 kg (218 pounds).

Airport information


A Sioux Gateway Airport
City: Sioux City, IA
Country: United States Flag of United States
IATA Code: SUX
ICAO Code: KSUX
Coordinates: 42°24′9″N, 96°23′3″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

Sioux City to Fort Smith flight map.

Frequent Flyer Miles Calculator

Sioux City (SUX) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
499
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
499

Round trip?