Air Miles Calculator logo

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

The distance between Great Falls (Great Falls International Airport) and McGrath (McGrath Airport) is 1993 miles / 3207 kilometers / 1731 nautical miles.

The driving distance from Great Falls (GTF) to McGrath (MCG) is 2494 miles / 4013 kilometers, and travel time by car is about 51 hours 12 minutes.

Great Falls International Airport – McGrath Airport

Distance arrow
1993
Miles
Distance arrow
3207
Kilometers
Distance arrow
1731
Nautical miles

Search flights

Distance from Great Falls to McGrath

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

Vincenty's formula (applied above)
  • 1992.568 miles
  • 3206.727 kilometers
  • 1731.494 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
  • 1987.162 miles
  • 3198.028 kilometers
  • 1726.797 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 McGrath?

The estimated flight time from Great Falls International Airport to McGrath Airport is 4 hours and 16 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and McGrath Airport (MCG)

On average, flying from Great Falls to McGrath generates about 217 kg of CO2 per passenger, and 217 kilograms equals 479 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 McGrath

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

Airport information

Origin 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
Destination McGrath Airport
City: McGrath, AK
Country: United States Flag of United States
IATA Code: MCG
ICAO Code: PAMC
Coordinates: 62°57′10″N, 155°36′21″W