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

Arrival Airport:

Distance from HYL to GFA:
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- About this route
- HYL Airport Information
- GFA Airport Information
- Facts about HYL
- Facts about GFA
- Map of Nearest Airports to HYL
- List of Nearest Airports to HYL
- Map of Furthest Airports from HYL
- List of Furthest Airports from HYL
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
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- List of Furthest Airports from GFA
About this route:
A direct, nonstop flight between Hollis Clark Bay Seaplane Base (HYL), Hollis, Alaska, United States and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 1,068 miles (or 1,719 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 Hollis Clark Bay Seaplane Base and Malmstrom Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HYL / |
Airport Name: | Hollis Clark Bay Seaplane Base |
Location: | Hollis, Alaska, United States |
GPS Coordinates: | 55°29'26"N by 132°37'24"W |
Area Served: | Hollis, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeastern Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from HYL |
More Information: | HYL Maps & Info |
Arrival 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 |
Facts about Hollis Clark Bay Seaplane Base (HYL):
- The furthest airport from Hollis Clark Bay Seaplane Base (HYL) is Port Alfred Airport (AFD), which is located 10,631 miles (17,108 kilometers) away in Port Alfred, South Africa.
- Because of Hollis Clark Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hollis Clark 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.
- Hollis Clark Bay Seaplane Base (HYL) currently has only 1 runway.
- The closest airport to Hollis Clark Bay Seaplane Base (HYL) is Thorne Bay Seaplane Base (KTB), which is located only 14 miles (23 kilometers) NNE of HYL.
Facts about Malmstrom Air Force Base (GFA):
- Tensions between the United States and the Soviet Union increased dramatically when the Soviet Union closed all land travel between the western occupation sectors of Germany and the American, French and British sectors of Berlin.
- Later, the 517th Air Transport Wing was redesginated the 1701st Air Transport Wing on 1 June 1948 when Air Transport Command was redesignated the Military Air Transport Service.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- 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.
- On 18 December 1953, Great Falls AFB was transferred from Military Air Transport Service to Strategic Air Command, although MATS units remained at the base for several years.
- 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 1959 a SAGE data center was established at Malmstrom.
- Originally named Great Falls Army Air Base, later Great Falls Air Force Base, the facility was renamed Malmstrom Air Force Base on 1 October 1955 in honor of Colonel Einar Axel Malmstrom.