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

Arrival Airport:

Distance from XAU to FSI:
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- About this route
- XAU Airport Information
- FSI Airport Information
- Facts about XAU
- Facts about 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
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Saül Airport (XAU), Saül, French Guiana and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States 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 Saül Airport and Henry Post Army Airfield, 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 Saül Airport and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
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.
- 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.
- 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.
Facts about Henry Post Army Airfield (FSI):
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- 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.
- 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 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.