Nonstop flight route between Fort Sill, Oklahoma, United States and Argyle, Western Australia, Australia:
Departure Airport:

Arrival Airport:

Distance from FSI to GYL:
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- About this route
- FSI Airport Information
- GYL Airport Information
- Facts about FSI
- Facts about GYL
- 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 GYL
- List of Nearest Airports to GYL
- Map of Furthest Airports from GYL
- List of Furthest Airports from GYL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Argyle Airport (GYL), Argyle, Western Australia, Australia would travel a Great Circle distance of 9,298 miles (or 14,964 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 Argyle 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 Argyle 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: | GYL / YARG |
Airport Name: | Argyle Airport |
Location: | Argyle, Western Australia, Australia |
GPS Coordinates: | 16°38'12"S by 128°27'5"E |
Airport Type: | Private |
Elevation: | 522 feet (159 meters) |
# of Runways: | 1 |
View all routes: | Routes from GYL |
More Information: | GYL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- 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.
Facts about Argyle Airport (GYL):
- Argyle Airport (GYL) currently has only 1 runway.
- Because of Argyle Airport's relatively low elevation of 522 feet, planes can take off or land at Argyle 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 Argyle Airport (GYL) is Argyle Downs Airport (AGY), which is located 28 miles (45 kilometers) NE of GYL.
- The furthest airport from Argyle Airport (GYL) is Grantley Adams International Airport (BGI), which is located 11,852 miles (19,074 kilometers) away in Bridgetown, Barbados.