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):
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
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.
- King Salmon Airport covers an area of 5,277 acres at an elevation of 73 feet above mean sea level.
- The closest airport to King Salmon Airport (AKN) is South Naknek Airport (WSN), which is located only 13 miles (21 kilometers) W of AKN.
- In addition to being known as "King Salmon Airport", other names for AKN include "(former Naknek Air Force Base)" and "(former Naknek Army Airfield)".
- 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.
- King Salmon Airport (AKN) has 3 runways.