Nonstop flight route between Fort Sill, Oklahoma, United States and Elcho Island, Northern Territory, Australia:
Departure Airport:

Arrival Airport:

Distance from FSI to ELC:
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- About this route
- FSI Airport Information
- ELC Airport Information
- Facts about FSI
- Facts about ELC
- 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 ELC
- List of Nearest Airports to ELC
- Map of Furthest Airports from ELC
- List of Furthest Airports from ELC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Elcho Island Airport (ELC), Elcho Island, Northern Territory, Australia would travel a Great Circle distance of 8,725 miles (or 14,041 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 Elcho Island 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 Elcho Island 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: | ELC / YELD |
Airport Name: | Elcho Island Airport |
Location: | Elcho Island, Northern Territory, Australia |
GPS Coordinates: | 12°1'11"S by 135°34'11"E |
Operator/Owner: | Marthakal Yolngu Airline |
Airport Type: | Public |
Elevation: | 101 feet (31 meters) |
# of Runways: | 1 |
View all routes: | Routes from ELC |
More Information: | ELC 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.
- 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.
- 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.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Elcho Island Airport (ELC):
- The furthest airport from Elcho Island Airport (ELC) is Cayenne – Félix Eboué Airport (CAY), which is located 11,701 miles (18,831 kilometers) away in Cayenne, French Guiana.
- The closest airport to Elcho Island Airport (ELC) is Lake Evella Airport (LEL), which is located 37 miles (59 kilometers) SSE of ELC.
- Because of Elcho Island Airport's relatively low elevation of 101 feet, planes can take off or land at Elcho Island 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.
- Elcho Island Airport (ELC) currently has only 1 runway.