How far is Gillam from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Gillam (Gillam Airport) is 936 miles / 1506 kilometers / 813 nautical miles.
The driving distance from Great Falls (GTF) to Gillam (YGX) is 1299 miles / 2090 kilometers, and travel time by car is about 30 hours 40 minutes.
Great Falls International Airport – Gillam Airport
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Distance from Great Falls to Gillam
There are several ways to calculate the distance from Great Falls to Gillam. Here are two standard methods:
Vincenty's formula (applied above)- 935.753 miles
- 1505.948 kilometers
- 813.147 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- 933.803 miles
- 1502.810 kilometers
- 811.452 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 Great Falls to Gillam?
The estimated flight time from Great Falls International Airport to Gillam Airport is 2 hours and 16 minutes.
What is the time difference between Great Falls and Gillam?
The time difference between Great Falls and Gillam is 1 hour. Gillam is 1 hour ahead of Great Falls.
Flight carbon footprint between Great Falls International Airport (GTF) and Gillam Airport (YGX)
On average, flying from Great Falls to Gillam generates about 146 kg of CO2 per passenger, and 146 kilograms equals 323 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Gillam
See the map of the shortest flight path between Great Falls International Airport (GTF) and Gillam Airport (YGX).
Airport information
| Origin | 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 |
| Destination | Gillam Airport |
|---|---|
| City: | Gillam |
| Country: | Canada  |
| IATA Code: | YGX |
| ICAO Code: | CYGX |
| Coordinates: | 56°21′26″N, 94°42′38″W |