Air Miles Calculator

Distance between Houston, TX (IAH) and Fort Smith, AR (FSM)

Distance from Houston to Fort Smith (Fort Smith Regional Airport – George Bush Intercontinental Airport) is 373 miles / 601 kilometers / 324 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 373.154 miles
  • 600.533 kilometers
  • 324.262 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
  • 374.110 miles
  • 602.071 kilometers
  • 325.093 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from George Bush Intercontinental Airport (IAH) to Fort Smith Regional Airport (FSM) is 1 hour 12 minutes.

Time difference and current local times

There is no time difference between Houston and Fort Smith.

Time Difference

Houston
Fort Smith

Houston, TX

 CST

Fort Smith, AR

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 77 kg (169 pounds).

Airport information


A George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″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

Houston to Fort Smith flight map.

Frequent Flyer Miles Calculator

Houston (IAH) → Fort Smith (FSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
373
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
373

Round trip?