How far is Great Falls, MT, from Houston, TX?
The distance between Houston (Houston George Bush Intercontinental Airport) and Great Falls (Great Falls International Airport) is 1479 miles / 2380 kilometers / 1285 nautical miles.
The driving distance from Houston (IAH) to Great Falls (GTF) is 1798 miles / 2893 kilometers, and travel time by car is about 33 hours 21 minutes.
Houston George Bush Intercontinental Airport – Great Falls International Airport
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Distance from Houston to Great Falls
There are several ways to calculate the distance from Houston to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1479.100 miles
- 2380.381 kilometers
- 1285.303 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 1479.532 miles
- 2381.075 kilometers
- 1285.678 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).
How long does it take to fly from Houston to Great Falls?
The estimated flight time from Houston George Bush Intercontinental Airport to Great Falls International Airport is 3 hours and 18 minutes.
What is the time difference between Houston and Great Falls?
The time difference between Houston and Great Falls is 1 hour. Great Falls is 1 hour behind Houston.
Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and Great Falls International Airport (GTF)
On average, flying from Houston to Great Falls generates about 178 kg of CO2 per passenger, and 178 kilograms equals 393 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Houston to Great Falls
See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Great Falls International Airport (GTF).
Airport information
| Origin | Houston George Bush Intercontinental Airport |
|---|---|
| City: | Houston, TX |
| Country: | United States  |
| IATA Code: | IAH |
| ICAO Code: | KIAH |
| Coordinates: | 29°59′3″N, 95°20′29″W |
| Destination | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |