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

Arrival Airport:

Distance from FSI to OGN:
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- About this route
- FSI Airport Information
- OGN Airport Information
- Facts about FSI
- Facts about OGN
- 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 OGN
- List of Nearest Airports to OGN
- Map of Furthest Airports from OGN
- List of Furthest Airports from OGN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Yonaguni Airport (OGN), Yonaguni, Okinawa, Japan would travel a Great Circle distance of 7,534 miles (or 12,125 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 Yonaguni 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 Yonaguni 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: | OGN / ROYN |
Airport Names: |
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Location: | Yonaguni, Okinawa, Japan |
GPS Coordinates: | 24°28'3"N by 122°58'46"E |
Area Served: | Yonaguni, Okinawa, Japan |
Operator/Owner: | Okinawa Prefecture |
Airport Type: | Public |
Elevation: | 49 feet (15 meters) |
# of Runways: | 1 |
View all routes: | Routes from OGN |
More Information: | OGN Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- 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.
Facts about Yonaguni Airport (OGN):
- Yonaguni Airport (OGN) currently has only 1 runway.
- Because of Yonaguni Airport's relatively low elevation of 49 feet, planes can take off or land at Yonaguni 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 being known as "Yonaguni Airport", other names for OGN include "Yonaguni Jima Airport", "与那国空港" and "Yonaguni Kūkō".
- The furthest airport from Yonaguni Airport (OGN) is Silvio Pettirossi International Airport (ASU), which is nearly antipodal to Yonaguni Airport (meaning Yonaguni Airport is almost on the exact opposite side of the Earth from Silvio Pettirossi International Airport), and is located 12,375 miles (19,916 kilometers) away in Asunción, Paraguay.
- The closest airport to Yonaguni Airport (OGN) is Hateruma Airport (HTR), which is located 59 miles (95 kilometers) ESE of OGN.