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How far is Great Falls, MT, from Johannesburg?

The distance between Johannesburg (Lanseria International Airport) and Great Falls (Great Falls International Airport) is 9779 miles / 15738 kilometers / 8498 nautical miles.

Lanseria International Airport – Great Falls International Airport

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9779
Miles
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15738
Kilometers
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8498
Nautical miles

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Distance from Johannesburg to Great Falls

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

Vincenty's formula (applied above)
  • 9779.013 miles
  • 15737.796 kilometers
  • 8497.730 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
  • 9780.020 miles
  • 15739.417 kilometers
  • 8498.605 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 Johannesburg to Great Falls?

The estimated flight time from Lanseria International Airport to Great Falls International Airport is 19 hours and 0 minutes.

Flight carbon footprint between Lanseria International Airport (HLA) and Great Falls International Airport (GTF)

On average, flying from Johannesburg to Great Falls generates about 1 267 kg of CO2 per passenger, and 1 267 kilograms equals 2 793 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Johannesburg to Great Falls

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

Airport information

Origin Lanseria International Airport
City: Johannesburg
Country: South Africa Flag of South Africa
IATA Code: HLA
ICAO Code: FALA
Coordinates: 25°56′18″S, 27°55′33″E
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