Nonstop flight route between Fort Sill, Oklahoma, United States and Long Apung, Indonesia:
Departure Airport:

Arrival Airport:

Distance from FSI to LPU:
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- About this route
- FSI Airport Information
- LPU Airport Information
- Facts about FSI
- Facts about LPU
- 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 LPU
- List of Nearest Airports to LPU
- Map of Furthest Airports from LPU
- List of Furthest Airports from LPU
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Long Apung Airport (LPU), Long Apung, Indonesia would travel a Great Circle distance of 9,124 miles (or 14,683 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 Long Apung 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 Long Apung 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: | LPU / WRLP |
Airport Names: |
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Location: | Long Apung, Indonesia |
GPS Coordinates: | 1°42'12"N by 114°58'13"E |
Area Served: | Long Apung, Malinau Regency, North Kalimantan, Indonesia |
Operator/Owner: | Private |
Airport Type: | Public |
Elevation: | 2400 feet (732 meters) |
# of Runways: | 1 |
View all routes: | Routes from LPU |
More Information: | LPU Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 Long Apung Airport (LPU):
- The furthest airport from Long Apung Airport (LPU) is Tefé Airport (TFF), which is nearly antipodal to Long Apung Airport (meaning Long Apung Airport is almost on the exact opposite side of the Earth from Tefé Airport), and is located 12,319 miles (19,826 kilometers) away in Tefé, Amazonas, Brazil.
- In addition to being known as "Long Apung Airport", another name for LPU is "WALP".
- The closest airport to Long Apung Airport (LPU) is Datadawai Airport (DTD), which is located 69 miles (111 kilometers) SSW of LPU.
- Long Apung Airport (LPU) currently has only 1 runway.