Nonstop flight route between Great Falls, Montana, United States and Amook Bay, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from GFA to AOS:
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- About this route
- GFA Airport Information
- AOS Airport Information
- Facts about GFA
- Facts about AOS
- 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 AOS
- List of Nearest Airports to AOS
- Map of Furthest Airports from AOS
- List of Furthest Airports from AOS
About this route:
A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Amook Bay Seaplane Base (AOS), Amook Bay, Alaska, United States would travel a Great Circle distance of 1,884 miles (or 3,031 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 Amook Bay Seaplane Base, 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: | AOS / |
Airport Names: |
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Location: | Amook Bay, Alaska, United States |
GPS Coordinates: | 57°28'17"N by 153°48'55"W |
Area Served: | Amook Bay, Alaska |
Operator/Owner: | Mike Munsey |
Airport Type: | Private |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from AOS |
More Information: | AOS Maps & Info |
Facts about Malmstrom Air Force Base (GFA):
- Aircraft shipments to the Soviet Union stopped in September 1945, when World War II ended, with approximately 8,000 aircraft having been processed in a 21-month period.
- 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.
- DC-20 was initially under the Great Falls Air Defense Sector, established on 1 March 1959.
- Great Falls was reassigned to the Central Air Defense Force at Richards-Gebaur Air Force Base in 1953.
- 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.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- Upon completion of the B-17 training program, in October 1943, Great Falls Army Air Base was transferred to the Air Transport Command and units from Gore Field were transferred to the base.
- With the phaseout of the B-36 from the inventory in the late 1950s, the need for fighter escorts of SAC bombers was eliminated.
Facts about Amook Bay Seaplane Base (AOS):
- Amook Bay Seaplane Base (AOS) currently has only 1 runway.
- In addition to being known as "Amook Bay Seaplane Base", another name for AOS is "AK81".
- The closest airport to Amook Bay Seaplane Base (AOS) is Zachar Bay Seaplane Base (KZB), which is located only 6 miles (10 kilometers) NNE of AOS.
- Amook Bay Seaplane Base has one seaplane landing area designated N/S with a water surface measuring 8,000 by 700 feet.
- The furthest airport from Amook Bay Seaplane Base (AOS) is Port Elizabeth International Airport (PLZ), which is located 10,814 miles (17,403 kilometers) away in Port Elizabeth, South Africa.
- Because of Amook Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Amook Bay Seaplane Base 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.