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

Arrival Airport:

Distance from FSI to AIN:
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- About this route
- FSI Airport Information
- AIN Airport Information
- Facts about FSI
- Facts about AIN
- 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 AIN
- List of Nearest Airports to AIN
- Map of Furthest Airports from AIN
- List of Furthest Airports from AIN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Wainwright Airport (AIN), Fort Wainwright, Alaska, United States would travel a Great Circle distance of 3,332 miles (or 5,363 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 Wainwright 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 Wainwright 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: | AIN / PAWI |
Airport Names: |
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Location: | Fort Wainwright, Alaska, United States |
GPS Coordinates: | 70°38'17"N by 159°59'40"W |
Area Served: | Wainwright, Alaska |
Operator/Owner: | North Slope Borough |
Airport Type: | Public |
Elevation: | 45 feet (14 meters) |
# of Runways: | 1 |
View all routes: | Routes from AIN |
More Information: | AIN Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
Facts about Wainwright Airport (AIN):
- The closest airport to Wainwright Airport (AIN) is Atqasuk Edward Burnell Sr. Memorial Airport (ATK), which is located 60 miles (97 kilometers) E of AIN.
- Because of Wainwright Airport's relatively low elevation of 45 feet, planes can take off or land at Wainwright 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 furthest airport from Wainwright Airport (AIN) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,348 miles (16,654 kilometers) away in Villa Las Estrellas, Antarctica.
- The radar station was upgraded in the late 1980s with new radars and in 1989 was re-designated part of the North Warning System as a Long Range Radar Site, A-16, controlled by the Pacific Air Forces 611th Air Support Group, based at Elmendorf AFB.
- Wainwright Airport (AIN) currently has only 1 runway.
- In addition to being known as "Wainwright Airport", another name for AIN is "AWI".