Nonstop flight route between Grand Forks, North Dakota, United States and Del Carmen, Surigao del Norte, Philippines:
Departure Airport:

Arrival Airport:

Distance from RDR to SOS:
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- About this route
- RDR Airport Information
- SOS Airport Information
- Facts about RDR
- Facts about SOS
- Map of Nearest Airports to RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
- Map of Nearest Airports to SOS
- List of Nearest Airports to SOS
- Map of Furthest Airports from SOS
- List of Furthest Airports from SOS
About this route:
A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Sayak Airport (SOS), Del Carmen, Surigao del Norte, Philippines would travel a Great Circle distance of 7,643 miles (or 12,300 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 Grand Forks Air Force Base and Sayak 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 Grand Forks Air Force Base and Sayak Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | RDR / KRDR |
Airport Names: |
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Location: | Grand Forks, North Dakota, United States |
GPS Coordinates: | 47°57'39"N by 97°24'3"W |
View all routes: | Routes from RDR |
More Information: | RDR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SOS / RPSN |
Airport Names: |
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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 |
Facts about Grand Forks Air Force Base (RDR):
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- On 3 September 1974, the SAFSCOM Site Activation Team was relieved by the U.S.
- With the restructuring of the Air Force and the disestablishment of SAC in 1992, the wing transferred to Air Combat Command, then came under Air Force Space Command in 1993.
- During the Cold War, GFAFB was a major installation of the Strategic Air Command, with B-52 bombers, KC-135 tankers, and Minuteman intercontinental ballistic missiles.
- The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
- In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
Facts about Sayak Airport (SOS):
- Sayak Airport (SOS) currently has only 1 runway.
- 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.
- In addition to being known as "Sayak Airport", other names for SOS include "Paliparan ng Sayak", "IAO" and "RPNS".
- Sayak Airport handled 781 passengers last year.
- 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.
- The closest airport to Sayak Airport (SOS) is Surigao Airport (SUG), which is located 37 miles (60 kilometers) W of SOS.