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How far is Blountville, TN, from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Blountville (Blountville Tri-Cities Regional Airport) is 1660 miles / 2672 kilometers / 1443 nautical miles.

The driving distance from Great Falls (GTF) to Blountville (TRI) is 1979 miles / 3185 kilometers, and travel time by car is about 36 hours 26 minutes.

Great Falls International Airport – Blountville Tri-Cities Regional Airport

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1660
Miles
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2672
Kilometers
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1443
Nautical miles

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Distance from Great Falls to Blountville

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

Vincenty's formula (applied above)
  • 1660.404 miles
  • 2672.162 kilometers
  • 1442.852 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
  • 1657.366 miles
  • 2667.273 kilometers
  • 1440.212 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 Blountville?

The estimated flight time from Great Falls International Airport to Blountville Tri-Cities Regional Airport is 3 hours and 38 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Blountville Tri-Cities Regional Airport (TRI)

On average, flying from Great Falls to Blountville generates about 190 kg of CO2 per passenger, and 190 kilograms equals 419 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 Blountville

See the map of the shortest flight path between Great Falls International Airport (GTF) and Blountville Tri-Cities Regional Airport (TRI).

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 Blountville Tri-Cities Regional Airport
City: Blountville, TN
Country: United States Flag of United States
IATA Code: TRI
ICAO Code: KTRI
Coordinates: 36°28′30″N, 82°24′26″W