Nonstop flight route between Fort Sill, Oklahoma, United States and King Salmon, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to AKN:
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- About this route
- FSI Airport Information
- AKN Airport Information
- Facts about FSI
- Facts about AKN
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to AKN
- List of Nearest Airports to AKN
- Map of Furthest Airports from AKN
- List of Furthest Airports from AKN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and King Salmon Airport (AKN), King Salmon, Alaska, United States would travel a Great Circle distance of 3,089 miles (or 4,971 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 large distance between Henry Post Army Airfield and King Salmon Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and King Salmon Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | AKN / PAKN |
Airport Names: |
|
Location: | King Salmon, Alaska, United States |
GPS Coordinates: | 58°40'35"N by 156°38'54"W |
Area Served: | King Salmon, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 73 feet (22 meters) |
# of Runways: | 3 |
View all routes: | Routes from AKN |
More Information: | AKN Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
Facts about King Salmon Airport (AKN):
- The furthest airport from King Salmon Airport (AKN) is George Airport (GRJ), which is located 10,732 miles (17,271 kilometers) away in George, South Africa.
- Because of King Salmon Airport's relatively low elevation of 73 feet, planes can take off or land at King Salmon 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.
- The closest airport to King Salmon Airport (AKN) is South Naknek Airport (WSN), which is located only 13 miles (21 kilometers) W of AKN.
- On June 30, 1985, Douglas C-47B N168Z of Northern Peninsula Fisheries was substantially damaged at King Salmon when both engines failed on approach while the aircraft was on an executive flight from Homer Airport, Alaska.
- In addition to being known as "King Salmon Airport", other names for AKN include "(former Naknek Air Force Base)" and "(former Naknek Army Airfield)".
- King Salmon Airport is a state owned, public use airport located just southeast of King Salmon, in the Bristol Bay Borough of the U.S.
- King Salmon Airport (AKN) has 3 runways.