Nonstop flight route between Great Falls, Montana, United States and Old Harbor, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from GFA to OLH:
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- About this route
- GFA Airport Information
- OLH Airport Information
- Facts about GFA
- Facts about OLH
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
- Map of Furthest Airports from GFA
- List of Furthest Airports from GFA
- Map of Nearest Airports to OLH
- List of Nearest Airports to OLH
- Map of Furthest Airports from OLH
- List of Furthest Airports from OLH
About this route:
A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Old Harbor Airport (OLH), Old Harbor, Alaska, United States would travel a Great Circle distance of 1,862 miles (or 2,997 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Malmstrom Air Force Base and Old Harbor Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GFA / KGFA |
Airport Names: |
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Location: | Great Falls, Montana, United States |
GPS Coordinates: | 47°30'16"N by 111°11'13"W |
View all routes: | Routes from GFA |
More Information: | GFA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OLH / |
Airport Names: |
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Location: | Old Harbor, Alaska, United States |
GPS Coordinates: | 57°13'5"N by 153°16'9"W |
Area Served: | Old Harbor, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 55 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from OLH |
More Information: | OLH Maps & Info |
Facts about Malmstrom Air Force Base (GFA):
- The North American Aerospace Defense Command was created in 1957.
- MATS reopened the C-54 Flight Training School as the 1272 Medium Transition Training Unit in May 1950, one month before the Korean War began.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
- Malmstrom Air Force Base is a United States Air Force base and census-designated place in Great Falls, Cascade County, Montana, United States.
- This included one of the greatest technology transfers in the history of the world.
- In 1957, under the control of the 801st Aircraft Control and Warning Squadron, the Malmstrom AFB radar station became operational with AN/FPS-20 search and AN/FPS-6 height-finder radars.
- The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
Facts about Old Harbor Airport (OLH):
- Because of Old Harbor Airport's relatively low elevation of 55 feet, planes can take off or land at Old Harbor Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- In addition to being known as "Old Harbor Airport", another name for OLH is "6R7".
- Old Harbor Airport (OLH) currently has only 1 runway.
- Old Harbor Airport resides at elevation of 55 feet above mean sea level.
- As per Federal Aviation Administration records, the airport had 3,282 passenger boardings in calendar year 2008, 3,226 enplanements in 2009, and 3,177 in 2010.
- The closest airport to Old Harbor Airport (OLH) is Amook Bay Seaplane Base (AOS), which is located 27 miles (43 kilometers) NW of OLH.
- The furthest airport from Old Harbor Airport (OLH) is Port Elizabeth International Airport (PLZ), which is located 10,831 miles (17,430 kilometers) away in Port Elizabeth, South Africa.