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How far is Great Falls, MT, from Reykjavik?

The distance between Reykjavik (Keflavík International Airport) and Great Falls (Great Falls International Airport) is 3329 miles / 5357 kilometers / 2893 nautical miles.

Keflavík International Airport – Great Falls International Airport

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3329
Miles
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5357
Kilometers
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2893
Nautical miles

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Distance from Reykjavik to Great Falls

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

Vincenty's formula (applied above)
  • 3328.729 miles
  • 5357.070 kilometers
  • 2892.587 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
  • 3318.395 miles
  • 5340.440 kilometers
  • 2883.607 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 Reykjavik to Great Falls?

The estimated flight time from Keflavík International Airport to Great Falls International Airport is 6 hours and 48 minutes.

Flight carbon footprint between Keflavík International Airport (KEF) and Great Falls International Airport (GTF)

On average, flying from Reykjavik to Great Falls generates about 374 kg of CO2 per passenger, and 374 kilograms equals 824 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Reykjavik to Great Falls

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

Airport information

Origin Keflavík International Airport
City: Reykjavik
Country: Iceland Flag of Iceland
IATA Code: KEF
ICAO Code: BIKF
Coordinates: 63°59′6″N, 22°36′20″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