Nonstop flight route between Fort Sill, Oklahoma, United States and Ailuk, Marshall Islands:
Departure Airport:

Arrival Airport:

Distance from FSI to AIM:
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- About this route
- FSI Airport Information
- AIM Airport Information
- Facts about FSI
- Facts about AIM
- 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 AIM
- List of Nearest Airports to AIM
- Map of Furthest Airports from AIM
- List of Furthest Airports from AIM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ailuk Airport (AIM), Ailuk, Marshall Islands would travel a Great Circle distance of 5,909 miles (or 9,510 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 Ailuk 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 Ailuk 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: | AIM / |
Airport Name: | Ailuk Airport |
Location: | Ailuk, Marshall Islands |
GPS Coordinates: | 10°13'0"N by 169°58'59"E |
Area Served: | Ailuk, Ailuk Atoll, Marshall Islands |
View all routes: | Routes from AIM |
More Information: | AIM 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.
- 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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
Facts about Ailuk Airport (AIM):
- The closest airport to Ailuk Airport (AIM) is Likiep Airport (LIK), which is located 53 miles (86 kilometers) WSW of AIM.
- The furthest airport from Ailuk Airport (AIM) is RAF Ascension (ASI), which is nearly antipodal to Ailuk Airport (meaning Ailuk Airport is almost on the exact opposite side of the Earth from RAF Ascension), and is located 12,100 miles (19,473 kilometers) away in Georgetown, Ascension Island, Saint Helena.