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

Arrival Airport:

Distance from FSI to AKK:
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- About this route
- FSI Airport Information
- AKK Airport Information
- Facts about FSI
- Facts about AKK
- 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 AKK
- List of Nearest Airports to AKK
- Map of Furthest Airports from AKK
- List of Furthest Airports from AKK
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Akhiok Airport (AKK), Akhiok, Alaska, United States would travel a Great Circle distance of 2,985 miles (or 4,804 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 Akhiok 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 Akhiok 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: | AKK / PAKH |
Airport Name: | Akhiok Airport |
Location: | Akhiok, Alaska, United States |
GPS Coordinates: | 56°56'18"N by 154°10'57"W |
Area Served: | Akhiok, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 44 feet (13 meters) |
# of Runways: | 1 |
View all routes: | Routes from AKK |
More Information: | AKK Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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 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.
- Post Field served as a base for flight training for the Air Service.
Facts about Akhiok Airport (AKK):
- Because of Akhiok Airport's relatively low elevation of 44 feet, planes can take off or land at Akhiok 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.
- Akhiok Airport (AKK) currently has only 1 runway.
- Akhiok Airport resides at elevation of 44 feet above mean sea level.
- The furthest airport from Akhiok Airport (AKK) is Port Elizabeth International Airport (PLZ), which is located 10,851 miles (17,463 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Akhiok Airport (AKK) is Alitak Seaplane Base (ALZ), which is located only 4 miles (6 kilometers) SW of AKK.