Air Miles Calculator

Distance between Houston, TX (HOU) and Great Falls, MT (GTF)

Distance from Houston to Great Falls (William P. Hobby Airport – Great Falls International Airport) is 1501 miles / 2416 kilometers / 1304 nautical miles.

How far is Great Falls from Houston?

There are several ways to calculate distances between Houston and Great Falls. Here are two common methods:

Vincenty's formula (applied above)
  • 1501.098 miles
  • 2415.783 kilometers
  • 1304.418 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
  • 1501.605 miles
  • 2416.599 kilometers
  • 1304.859 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 William P. Hobby Airport (HOU) to Great Falls International Airport (GTF) is 3 hours 20 minutes.

Time difference and current local times

The time difference between Houston and Great Falls is 1 hour. Great Falls is 1 hour behind Houston.

Time Difference

Houston
Great Falls

Houston, TX

 CST

Great Falls, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 164 kg (361 pounds).

Airport information


A William P. Hobby Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″W

B Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W

Map

Houston to Great Falls flight map.

Frequent Flyer Miles Calculator

Houston (HOU) → Great Falls (GTF).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1501
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1501

Round trip?