Nonstop flight route between Siuna, Nicaragua and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from SIU to FSI:
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- About this route
- SIU Airport Information
- FSI Airport Information
- Facts about SIU
- Facts about FSI
- Map of Nearest Airports to SIU
- List of Nearest Airports to SIU
- Map of Furthest Airports from SIU
- List of Furthest Airports from SIU
- 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 Siuna Airport (SIU), Siuna, Nicaragua and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,678 miles (or 2,700 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 relatively short distance between Siuna Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SIU / MNSI |
Airport Name: | Siuna Airport |
Location: | Siuna, Nicaragua |
GPS Coordinates: | 13°43'0"N by 84°46'36"W |
Operator/Owner: | Republica de Nicaragua |
Airport Type: | Public |
Elevation: | 480 feet (146 meters) |
# of Runways: | 1 |
View all routes: | Routes from SIU |
More Information: | SIU 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 Siuna Airport (SIU):
- Siuna Airport (SIU) currently has only 1 runway.
- The closest airport to Siuna Airport (SIU) is Bonanza Airport (BZA), which is located 25 miles (39 kilometers) NNE of SIU.
- The furthest airport from Siuna Airport (SIU) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Siuna Airport (meaning Siuna Airport is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,286 miles (19,772 kilometers) away in Cocos Islands, Australia.
- Because of Siuna Airport's relatively low elevation of 480 feet, planes can take off or land at Siuna 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):
- 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.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 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.
- 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.