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How far is Great Falls, MT, from Green Bay, WI?

The distance between Green Bay (Green Bay–Austin Straubel International Airport) and Great Falls (Great Falls International Airport) is 1134 miles / 1824 kilometers / 985 nautical miles.

The driving distance from Green Bay (GRB) to Great Falls (GTF) is 1254 miles / 2018 kilometers, and travel time by car is about 23 hours 2 minutes.

Green Bay–Austin Straubel International Airport – Great Falls International Airport

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1134
Miles
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1824
Kilometers
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985
Nautical miles

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Distance from Green Bay to Great Falls

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

Vincenty's formula (applied above)
  • 1133.544 miles
  • 1824.262 kilometers
  • 985.023 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
  • 1130.439 miles
  • 1819.265 kilometers
  • 982.325 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 Green Bay to Great Falls?

The estimated flight time from Green Bay–Austin Straubel International Airport to Great Falls International Airport is 2 hours and 38 minutes.

Flight carbon footprint between Green Bay–Austin Straubel International Airport (GRB) and Great Falls International Airport (GTF)

On average, flying from Green Bay to Great Falls generates about 158 kg of CO2 per passenger, and 158 kilograms equals 349 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Green Bay to Great Falls

See the map of the shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Great Falls International Airport (GTF).

Airport information

Origin Green Bay–Austin Straubel International Airport
City: Green Bay, WI
Country: United States Flag of United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″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