Nonstop flight route between Fort Sill, Oklahoma, United States and Ilhéus, Bahia, Brazil:
Departure Airport:

Arrival Airport:

Distance from FSI to IOS:
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- About this route
- FSI Airport Information
- IOS Airport Information
- Facts about FSI
- Facts about IOS
- 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 IOS
- List of Nearest Airports to IOS
- Map of Furthest Airports from IOS
- List of Furthest Airports from IOS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ilhéus/Bahia-Jorge Amado Airport (IOS), Ilhéus, Bahia, Brazil would travel a Great Circle distance of 5,178 miles (or 8,333 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 Ilhéus/Bahia-Jorge Amado 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 Ilhéus/Bahia-Jorge Amado 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: | IOS / SBIL |
Airport Names: |
|
Location: | Ilhéus, Bahia, Brazil |
GPS Coordinates: | 14°48'53"S by 39°1'59"W |
Area Served: | Ilhéus |
Operator/Owner: | Infraero |
Airport Type: | Public |
Elevation: | 13 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from IOS |
More Information: | IOS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
Facts about Ilhéus/Bahia-Jorge Amado Airport (IOS):
- Ilhéus/Bahia-Jorge Amado Airport (IOS) currently has only 1 runway.
- It is operated by Infraero.
- In addition to being known as "Ilhéus/Bahia-Jorge Amado Airport", another name for IOS is "Aeroporto de Ilhéus/Bahia-Jorge Amado".
- Ilhéus/Bahia-Jorge Amado Airport handled 502,390 passengers last year.
- The history of air transportation in Ilhéus is almost as old as the one of Brazil.
- Ilhéus/Bahia-Jorge Amado Airport, is the airport serving Ilhéus, Brazil.
- The closest airport to Ilhéus/Bahia-Jorge Amado Airport (IOS) is Porto Seguro Airport (BPS), which is located 112 miles (181 kilometers) S of IOS.
- The furthest airport from Ilhéus/Bahia-Jorge Amado Airport (IOS) is Guam International Airport (GUM), which is nearly antipodal to Ilhéus/Bahia-Jorge Amado Airport (meaning Ilhéus/Bahia-Jorge Amado Airport is almost on the exact opposite side of the Earth from Guam International Airport), and is located 12,164 miles (19,576 kilometers) away in Hagåtña, Guam.
- Because of Ilhéus/Bahia-Jorge Amado Airport's relatively low elevation of 13 feet, planes can take off or land at Ilhéus/Bahia-Jorge Amado 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.