Nonstop flight route between Fort Sill, Oklahoma, United States and Saül, French Guiana:
Departure Airport:

Arrival Airport:

Distance from FSI to XAU:
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- About this route
- FSI Airport Information
- XAU Airport Information
- Facts about FSI
- Facts about XAU
- 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 XAU
- List of Nearest Airports to XAU
- Map of Furthest Airports from XAU
- List of Furthest Airports from XAU
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Saül Airport (XAU), Saül, French Guiana would travel a Great Circle distance of 3,599 miles (or 5,793 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 Saül 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 Saül 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: | XAU / SOOS |
Airport Name: | Saül Airport |
Location: | Saül, French Guiana |
GPS Coordinates: | 3°36'48"N by 53°12'15"W |
Area Served: | Saül, French Guiana |
Operator/Owner: | Conseil Général de la Guyane |
Elevation: | 735 feet (224 meters) |
# of Runways: | 1 |
View all routes: | Routes from XAU |
More Information: | XAU Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
Facts about Saül Airport (XAU):
- The closest airport to Saül Airport (XAU) is Maripasoula Airport (MPY), which is located 58 miles (93 kilometers) W of XAU.
- Because of Saül Airport's relatively low elevation of 735 feet, planes can take off or land at Saül 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 furthest airport from Saül Airport (XAU) is Namrole Airport (NRE), which is nearly antipodal to Saül Airport (meaning Saül Airport is almost on the exact opposite side of the Earth from Namrole Airport), and is located 12,419 miles (19,986 kilometers) away in Buru, Indonesia.
- Saül Airport (XAU) currently has only 1 runway.