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

Arrival Airport:

Distance from FSI to TYE:
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- About this route
- FSI Airport Information
- TYE Airport Information
- Facts about FSI
- Facts about TYE
- 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 TYE
- List of Nearest Airports to TYE
- Map of Furthest Airports from TYE
- List of Furthest Airports from TYE
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Tyonek Airport (TYE), Tyonek, Alaska, United States would travel a Great Circle distance of 2,929 miles (or 4,714 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 Tyonek 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 Tyonek 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: | TYE / |
Airport Name: | Tyonek Airport |
Location: | Tyonek, Alaska, United States |
GPS Coordinates: | 61°4'36"N by 151°8'17"W |
Area Served: | Tyonek, Alaska |
Operator/Owner: | Village of Tyonek |
Airport Type: | Private |
Elevation: | 110 feet (34 meters) |
# of Runways: | 1 |
View all routes: | Routes from TYE |
More Information: | TYE Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Post Field served as a base for flight training for the Air Service.
- 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 Tyonek Airport (TYE):
- Tyonek Airport (TYE) currently has only 1 runway.
- Because of Tyonek Airport's relatively low elevation of 110 feet, planes can take off or land at Tyonek 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 Tyonek Airport (TYE) is Beluga Airport (BVU), which is located only 7 miles (12 kilometers) NNE of TYE.
- The furthest airport from Tyonek Airport (TYE) is Port Elizabeth International Airport (PLZ), which is located 10,559 miles (16,994 kilometers) away in Port Elizabeth, South Africa.