Nonstop flight route between Fort Sill, Oklahoma, United States and Ishigaki, Okinawa Prefecture, Japan:
Departure Airport:

Arrival Airport:

Distance from FSI to ISG:
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- About this route
- FSI Airport Information
- ISG Airport Information
- Facts about FSI
- Facts about ISG
- 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 ISG
- List of Nearest Airports to ISG
- Map of Furthest Airports from ISG
- List of Furthest Airports from ISG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ishigaki Airport (ISG), Ishigaki, Okinawa Prefecture, Japan would travel a Great Circle distance of 7,497 miles (or 12,065 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 Ishigaki 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 Ishigaki 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: | ISG / ROIG |
Airport Names: |
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Location: | Ishigaki, Okinawa Prefecture, Japan |
GPS Coordinates: | 24°20'40"N by 124°11'12"E |
Operator/Owner: | Ministry of Land, Infrastructure and Transport |
Elevation: | 86 feet (26 meters) |
# of Runways: | 1 |
View all routes: | Routes from ISG |
More Information: | ISG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 (FSI) currently has only 1 runway.
- 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 first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Post Field served as a base for flight training for the Air Service.
Facts about Ishigaki Airport (ISG):
- The closest airport to Ishigaki Airport (ISG) is Hateruma Airport (HTR), which is located 31 miles (50 kilometers) SW of ISG.
- Because of Ishigaki Airport's relatively low elevation of 86 feet, planes can take off or land at Ishigaki 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.
- Flight 611 of Southwest Air Lines is the only significant aircraft accident on record at Ishigaki Airport.
- In addition to being known as "Ishigaki Airport", other names for ISG include "石垣空港" and "Ishigaki Kūkō".
- To meet these needs New Ishigaki Airport was constructed on the eastern side of the island, replaced Ishigaki Airport.
- Ishigaki Airport (ISG) currently has only 1 runway.
- The furthest airport from Ishigaki Airport (ISG) is Guaraní International Airport (AGT), which is nearly antipodal to Ishigaki Airport (meaning Ishigaki Airport is almost on the exact opposite side of the Earth from Guaraní International Airport), and is located 12,339 miles (19,858 kilometers) away in Ciudad del Este, Paraguay.
- Ishigaki Airport, was a third-class airport located 1 NM from Ishigaki city centre in Okinawa Prefecture, Japan.