Nonstop flight route between Del Carmen, Surigao del Norte, Philippines and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from SOS to FSI:
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- About this route
- SOS Airport Information
- FSI Airport Information
- Facts about SOS
- Facts about FSI
- Map of Nearest Airports to SOS
- List of Nearest Airports to SOS
- Map of Furthest Airports from SOS
- List of Furthest Airports from SOS
- 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 Sayak Airport (SOS), Del Carmen, Surigao del Norte, Philippines and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,207 miles (or 13,209 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 Sayak 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 Sayak 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: | SOS / RPSN |
Airport Names: |
|
Location: | Del Carmen, Surigao del Norte, Philippines |
GPS Coordinates: | 9°51'32"N by 126°0'50"E |
Area Served: | Siargao Island |
Operator/Owner: | Civil Aviation Authority of the Philippines |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from SOS |
More Information: | SOS 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 Sayak Airport (SOS):
- The furthest airport from Sayak Airport (SOS) is Orlando Villas-Bôas Regional Airport (MBK), which is nearly antipodal to Sayak Airport (meaning Sayak Airport is almost on the exact opposite side of the Earth from Orlando Villas-Bôas Regional Airport), and is located 12,368 miles (19,904 kilometers) away in Matupá, Mato Grosso, Brazil.
- Because of Sayak Airport's relatively low elevation of 10 feet, planes can take off or land at Sayak 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.
- Sayak Airport handled 781 passengers last year.
- The closest airport to Sayak Airport (SOS) is Surigao Airport (SUG), which is located 37 miles (60 kilometers) W of SOS.
- In addition to being known as "Sayak Airport", other names for SOS include "Paliparan ng Sayak", "IAO" and "RPNS".
- Sayak Airport (SOS) currently has only 1 runway.
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.