Nonstop flight route between Fort Sill, Oklahoma, United States and Kolonia, Federated States of Micronesia:
Departure Airport:

Arrival Airport:

Distance from FSI to PNI:
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- About this route
- FSI Airport Information
- PNI Airport Information
- Facts about FSI
- Facts about PNI
- 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 PNI
- List of Nearest Airports to PNI
- Map of Furthest Airports from PNI
- List of Furthest Airports from PNI
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Pohnpei International Airport (PNI), Kolonia, Federated States of Micronesia would travel a Great Circle distance of 6,694 miles (or 10,773 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 Pohnpei International 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 Pohnpei International 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: | PNI / PTPN |
Airport Name: | Pohnpei International Airport |
Location: | Kolonia, Federated States of Micronesia |
GPS Coordinates: | 6°59'6"N by 158°12'32"E |
Area Served: | Pohnpei |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from PNI |
More Information: | PNI Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
Facts about Pohnpei International Airport (PNI):
- Pohnpei International Airport (PNI) currently has only 1 runway.
- The extension of the Pohnpei International Airport began in 2009, and it is anticipated that it will be completed in 2011.
- Because of Pohnpei International Airport's relatively low elevation of 10 feet, planes can take off or land at Pohnpei International 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.
- In addition to passenger services, Asia Pacific Airlines transports cargo to and from Pohnpei.
- The closest airport to Pohnpei International Airport (PNI) is Kosrae International Airport (KSA), which is located 345 miles (555 kilometers) ESE of PNI.
- Pohnpei International Airport is an airport located on Pohnpei Island, the main island of Pohnpei State.
- The furthest airport from Pohnpei International Airport (PNI) is RAF Ascension (ASI), which is located 11,926 miles (19,192 kilometers) away in Georgetown, Ascension Island, Saint Helena.