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

Arrival Airport:

Distance from FSI to UGS:
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- About this route
- FSI Airport Information
- UGS Airport Information
- Facts about FSI
- Facts about UGS
- 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 UGS
- List of Nearest Airports to UGS
- Map of Furthest Airports from UGS
- List of Furthest Airports from UGS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ugashik Airport (UGS), Ugashik, Alaska, United States would travel a Great Circle distance of 3,109 miles (or 5,003 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 Ugashik 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 Ugashik 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: | UGS / |
Airport Names: |
|
Location: | Ugashik, Alaska, United States |
GPS Coordinates: | 57°31'23"N by 157°23'45"W |
Area Served: | Ugashik, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 25 feet (8 meters) |
# of Runways: | 1 |
View all routes: | Routes from UGS |
More Information: | UGS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Ugashik Airport (UGS):
- Because of Ugashik Airport's relatively low elevation of 25 feet, planes can take off or land at Ugashik 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 Ugashik Airport (UGS) is Pilot Point Airport (PIP), which is located only 8 miles (12 kilometers) WNW of UGS.
- Ugashik Airport (UGS) currently has only 1 runway.
- In addition to being known as "Ugashik Airport", another name for UGS is "9A8".
- The furthest airport from Ugashik Airport (UGS) is George Airport (GRJ), which is located 10,812 miles (17,400 kilometers) away in George, South Africa.