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How far is Klamath Falls, OR, from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Klamath Falls (Crater Lake–Klamath Regional Airport) is 627 miles / 1010 kilometers / 545 nautical miles.

The driving distance from Great Falls (GTF) to Klamath Falls (LMT) is 895 miles / 1440 kilometers, and travel time by car is about 17 hours 34 minutes.

Great Falls International Airport – Crater Lake–Klamath Regional Airport

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627
Miles
Distance arrow
1010
Kilometers
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545
Nautical miles

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Distance from Great Falls to Klamath Falls

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

Vincenty's formula (applied above)
  • 627.300 miles
  • 1009.541 kilometers
  • 545.109 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
  • 626.287 miles
  • 1007.911 kilometers
  • 544.228 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 Klamath Falls?

The estimated flight time from Great Falls International Airport to Crater Lake–Klamath Regional Airport is 1 hour and 41 minutes.

Flight carbon footprint between Great Falls International Airport (GTF) and Crater Lake–Klamath Regional Airport (LMT)

On average, flying from Great Falls to Klamath Falls generates about 116 kg of CO2 per passenger, and 116 kilograms equals 256 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 Klamath Falls

See the map of the shortest flight path between Great Falls International Airport (GTF) and Crater Lake–Klamath Regional Airport (LMT).

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 Crater Lake–Klamath Regional Airport
City: Klamath Falls, OR
Country: United States Flag of United States
IATA Code: LMT
ICAO Code: KLMT
Coordinates: 42°9′21″N, 121°43′58″W