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

Arrival Airport:

Distance from FSI to AGY:
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- About this route
- FSI Airport Information
- AGY Airport Information
- Facts about FSI
- Facts about AGY
- 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 AGY
- List of Nearest Airports to AGY
- Map of Furthest Airports from AGY
- List of Furthest Airports from AGY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Argyle Downs Airport (AGY), Argyle Downs, Western Australia, Australia would travel a Great Circle distance of 9,271 miles (or 14,920 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 Downs 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 Downs 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: | AGY / |
Airport Name: | Argyle Downs Airport |
Location: | Argyle Downs, Western Australia, Australia |
GPS Coordinates: | 16°21'0"S by 128°45'0"E |
Elevation: | 289 feet (88 meters) |
View all routes: | Routes from AGY |
More Information: | AGY 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.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Argyle Downs Airport (AGY):
- Because of Argyle Downs Airport's relatively low elevation of 289 feet, planes can take off or land at Argyle Downs 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 Argyle Downs Airport (AGY) is Grantley Adams International Airport (BGI), which is located 11,841 miles (19,057 kilometers) away in Bridgetown, Barbados.
- The closest airport to Argyle Downs Airport (AGY) is Argyle Airport (GYL), which is located 28 miles (45 kilometers) SW of AGY.