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

Arrival Airport:

Distance from FSI to KNK:
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- About this route
- FSI Airport Information
- KNK Airport Information
- Facts about FSI
- Facts about KNK
- 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 KNK
- List of Nearest Airports to KNK
- Map of Furthest Airports from KNK
- List of Furthest Airports from KNK
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Kokhanok Airport (KNK), Kokhanok, Alaska, United States would travel a Great Circle distance of 3,030 miles (or 4,877 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 Kokhanok 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 Kokhanok 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: | KNK / PFKK |
Airport Names: |
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Location: | Kokhanok, Alaska, United States |
GPS Coordinates: | 59°25'59"N by 154°48'9"W |
Area Served: | Kokhanok, Alaska |
Operator/Owner: | State of Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 115 feet (35 meters) |
# of Runways: | 1 |
View all routes: | Routes from KNK |
More Information: | KNK Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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.
Facts about Kokhanok Airport (KNK):
- Because of Kokhanok Airport's relatively low elevation of 115 feet, planes can take off or land at Kokhanok 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.
- In addition to being known as "Kokhanok Airport", another name for KNK is "9K2".
- The closest airport to Kokhanok Airport (KNK) is Big Mountain Air Force Station (BMX), which is located only 17 miles (27 kilometers) WSW of KNK.
- Kokhanok Airport (KNK) currently has only 1 runway.
- The furthest airport from Kokhanok Airport (KNK) is Port Elizabeth International Airport (PLZ), which is located 10,678 miles (17,185 kilometers) away in Port Elizabeth, South Africa.