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How far is Great Falls, MT, from Unalaska, AK?

The distance between Unalaska (Unalaska Airport) and Great Falls (Great Falls International Airport) is 2399 miles / 3861 kilometers / 2085 nautical miles.

Unalaska Airport – Great Falls International Airport

Distance arrow
2399
Miles
Distance arrow
3861
Kilometers
Distance arrow
2085
Nautical miles

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Distance from Unalaska to Great Falls

There are several ways to calculate the distance from Unalaska to Great Falls. Here are two standard methods:

Vincenty's formula (applied above)
  • 2399.190 miles
  • 3861.121 kilometers
  • 2084.839 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
  • 2391.940 miles
  • 3849.454 kilometers
  • 2078.539 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 Unalaska to Great Falls?

The estimated flight time from Unalaska Airport to Great Falls International Airport is 5 hours and 2 minutes.

Flight carbon footprint between Unalaska Airport (DUT) and Great Falls International Airport (GTF)

On average, flying from Unalaska to Great Falls generates about 263 kg of CO2 per passenger, and 263 kilograms equals 581 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Unalaska to Great Falls

See the map of the shortest flight path between Unalaska Airport (DUT) and Great Falls International Airport (GTF).

Airport information

Origin Unalaska Airport
City: Unalaska, AK
Country: United States Flag of United States
IATA Code: DUT
ICAO Code: PADU
Coordinates: 53°54′0″N, 166°32′38″W
Destination 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