Nonstop flight route between Coatesville, Pennsylvania, United States and Shemya, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CTH to SYA:
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- About this route
- CTH Airport Information
- SYA Airport Information
- Facts about CTH
- Facts about SYA
- Map of Nearest Airports to CTH
- List of Nearest Airports to CTH
- Map of Furthest Airports from CTH
- List of Furthest Airports from CTH
- Map of Nearest Airports to SYA
- List of Nearest Airports to SYA
- Map of Furthest Airports from SYA
- List of Furthest Airports from SYA
About this route:
A direct, nonstop flight between Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States and Eareckson Air Station (SYA), Shemya, Alaska, United States would travel a Great Circle distance of 4,793 miles (or 7,714 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 Chester County G. O. Carlson Airport and Eareckson Air Station, 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 Chester County G. O. Carlson Airport and Eareckson Air Station. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CTH / KMQS |
Airport Names: |
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Location: | Coatesville, Pennsylvania, United States |
GPS Coordinates: | 39°58'44"N by 75°51'56"W |
Operator/Owner: | Chester County Area Airport Authority |
Airport Type: | Public |
Elevation: | 660 feet (201 meters) |
# of Runways: | 1 |
View all routes: | Routes from CTH |
More Information: | CTH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SYA / PASY |
Airport Names: |
|
Location: | Shemya, Alaska, United States |
GPS Coordinates: | 52°42'43"N by 174°6'48"E |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military |
Elevation: | 97 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from SYA |
More Information: | SYA Maps & Info |
Facts about Chester County G. O. Carlson Airport (CTH):
- Chester County G. O. Carlson Airport (CTH) currently has only 1 runway.
- The furthest airport from Chester County G. O. Carlson Airport (CTH) is Margaret River Airport (MGV), which is located 11,702 miles (18,833 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Chester County G. O. Carlson Airport (CTH) is Brandywine Airport (OQN), which is located only 15 miles (24 kilometers) E of CTH.
- In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
- Because of Chester County G. O. Carlson Airport's relatively low elevation of 660 feet, planes can take off or land at Chester County G. O. Carlson 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 Eareckson Air Station (SYA):
- Because of Eareckson Air Station's relatively low elevation of 97 feet, planes can take off or land at Eareckson Air Station 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.
- A second attack by B-24 Liberators was launched from Alexai Point and Shemya on 18 July.
- On 6 April 1993, Shemya Air Force Base was renamed Eareckson Air Station.
- In 1958, the Air Force resumed operations on Shemya in support of various Air Force and Army strategic intelligence collection activities.
- The station was also used by SAC Cobra Ball and other related projects which monitored missile-associated signals and tracks missiles during boost and re-entry phases to provide reconnaissance for treaty verification and theater ballistic missile proliferation.
- Eareckson Air Station (SYA) currently has only 1 runway.
- The furthest airport from Eareckson Air Station (SYA) is Cape Town International Airport (CPT), which is located 10,668 miles (17,168 kilometers) away in Cape Town, South Africa.
- In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and " ".
- Eareckson Air Station is located on the western tip of Alaska's Aleutian islands near the larger island of Attu, and is located approximately 1500 miles southwest of Anchorage.
- By August, Eleventh Air Force B-24s were carrying out successful and accurate attacks on the Japanese military installations and the B-25s were successful in driving the Japanese fishing and much of the shipping out of the North Pacific.
- The closest airport to Eareckson Air Station (SYA) is Casco Cove Coast Guard Station (ATU), which is located 40 miles (65 kilometers) WNW of SYA.