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

Arrival Airport:

Distance from HYG to GFA:
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- About this route
- HYG Airport Information
- GFA Airport Information
- Facts about HYG
- Facts about GFA
- Map of Nearest Airports to HYG
- List of Nearest Airports to HYG
- Map of Furthest Airports from HYG
- List of Furthest Airports from HYG
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
- Map of Furthest Airports from GFA
- List of Furthest Airports from GFA
About this route:
A direct, nonstop flight between Hydaburg Seaplane Base (HYG), Hydaburg, 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 Hydaburg 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: | HYG / PAHY |
Airport Name: | Hydaburg Seaplane Base |
Location: | Hydaburg, Alaska, United States |
GPS Coordinates: | 55°12'23"N by 132°49'41"W |
Area Served: | Hydaburg, Alaska |
Operator/Owner: | Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from HYG |
More Information: | HYG 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 Hydaburg Seaplane Base (HYG):
- Hydaburg Seaplane Base (HYG) currently has only 1 runway.
- Because of Hydaburg Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hydaburg 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.
- The furthest airport from Hydaburg Seaplane Base (HYG) is Port Alfred Airport (AFD), which is located 10,651 miles (17,140 kilometers) away in Port Alfred, South Africa.
- Scheduled airline passenger service is subsidized by the United States Department of Transportation via the Essential Air Service program.
- The closest airport to Hydaburg Seaplane Base (HYG) is Waterfall Seaplane Base (KWF), which is located only 17 miles (28 kilometers) WNW of HYG.
Facts about Malmstrom Air Force Base (GFA):
- 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.
- DC-20 was initially under the Great Falls Air Defense Sector, established on 1 March 1959.
- 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.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- Great Falls played a major aerial defense role in North American air defense mission.
- On 23 December 1959, the Air Force Ballistic Missile Committee approved the selection of Malmstrom AFB to host the first Minuteman ICBM base.
- 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.