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How far is Allentown, PA, from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Allentown (Lehigh Valley International Airport) is 1832 miles / 2948 kilometers / 1592 nautical miles.

The driving distance from Great Falls (GTF) to Allentown (ABE) is 2116 miles / 3406 kilometers, and travel time by car is about 38 hours 37 minutes.

Great Falls International Airport – Lehigh Valley International Airport

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1832
Miles
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2948
Kilometers
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1592
Nautical miles

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Distance from Great Falls to Allentown

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

Vincenty's formula (applied above)
  • 1831.891 miles
  • 2948.143 kilometers
  • 1591.870 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
  • 1827.308 miles
  • 2940.767 kilometers
  • 1587.887 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 Allentown?

The estimated flight time from Great Falls International Airport to Lehigh Valley International Airport is 3 hours and 58 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Lehigh Valley International Airport (ABE)

On average, flying from Great Falls to Allentown generates about 203 kg of CO2 per passenger, and 203 kilograms equals 447 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 Allentown

See the map of the shortest flight path between Great Falls International Airport (GTF) and Lehigh Valley International Airport (ABE).

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 Lehigh Valley International Airport
City: Allentown, PA
Country: United States Flag of United States
IATA Code: ABE
ICAO Code: KABE
Coordinates: 40°39′7″N, 75°26′26″W