How far is Annette, AK, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Annette (Annette Island Airport) is 1015 miles / 1633 kilometers / 882 nautical miles.
The driving distance from Great Falls (GTF) to Annette (ANN) is 1371 miles / 2206 kilometers, and travel time by car is about 32 hours 46 minutes.
Great Falls International Airport – Annette Island Airport
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Distance from Great Falls to Annette
There are several ways to calculate the distance from Great Falls to Annette. Here are two standard methods:
Vincenty's formula (applied above)- 1014.728 miles
- 1633.047 kilometers
- 881.775 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- 1012.243 miles
- 1629.047 kilometers
- 879.615 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 Annette?
The estimated flight time from Great Falls International Airport to Annette Island Airport is 2 hours and 25 minutes.
What is the time difference between Great Falls and Annette?
Flight carbon footprint between Great Falls International Airport (GTF) and Annette Island Airport (ANN)
On average, flying from Great Falls to Annette generates about 152 kg of CO2 per passenger, and 152 kilograms equals 335 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 Annette
See the map of the shortest flight path between Great Falls International Airport (GTF) and Annette Island Airport (ANN).
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 | Annette Island Airport |
|---|---|
| City: | Annette, AK |
| Country: | United States |
| IATA Code: | ANN |
| ICAO Code: | PANT |
| Coordinates: | 55°2′32″N, 131°34′19″W |