Nonstop flight route between Fort Sill, Oklahoma, United States and Bird Island, Seychelles:
Departure Airport:

Arrival Airport:

Distance from FSI to BDI:
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- About this route
- FSI Airport Information
- BDI Airport Information
- Facts about FSI
- Facts about BDI
- 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 BDI
- List of Nearest Airports to BDI
- Map of Furthest Airports from BDI
- List of Furthest Airports from BDI
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Bird Island Airport (BDI), Bird Island, Seychelles would travel a Great Circle distance of 9,712 miles (or 15,629 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 Bird Island 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 Bird Island 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: | BDI / FSSB |
Airport Name: | Bird Island Airport |
Location: | Bird Island, Seychelles |
GPS Coordinates: | 3°43'17"S by 55°12'31"E |
Operator/Owner: | Bird Island Lodge |
Airport Type: | Private |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from BDI |
More Information: | BDI Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
Facts about Bird Island Airport (BDI):
- The furthest airport from Bird Island Airport (BDI) is Atuona Airport (AUQ), which is located 11,085 miles (17,840 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- Bird Island Airport (BDI) currently has only 1 runway.
- Because of Bird Island Airport's relatively low elevation of 10 feet, planes can take off or land at Bird Island 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.
- The closest airport to Bird Island Airport (BDI) is Denis Island Airport (DEI), which is located 32 miles (51 kilometers) E of BDI.