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

Arrival Airport:

Distance from CTH to ANN:
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- About this route
- CTH Airport Information
- ANN Airport Information
- Facts about CTH
- Facts about ANN
- 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 ANN
- List of Nearest Airports to ANN
- Map of Furthest Airports from ANN
- List of Furthest Airports from ANN
About this route:
A direct, nonstop flight between Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States and Annette Island Airport (ANN), Annette Island, Alaska, United States would travel a Great Circle distance of 2,715 miles (or 4,369 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 Annette Island 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 Chester County G. O. Carlson Airport and Annette Island Airport. 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: | ANN / PANT |
Airport Names: |
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Location: | Annette Island, Alaska, United States |
GPS Coordinates: | 55°2'32"N by 131°34'19"W |
Area Served: | Metlakatla, Alaska |
Operator/Owner: | Metlakatla Indian Community |
Airport Type: | Private |
Elevation: | 119 feet (36 meters) |
# of Runways: | 2 |
View all routes: | Routes from ANN |
More Information: | ANN Maps & Info |
Facts about Chester County G. O. Carlson Airport (CTH):
- The airport opened May 1, 1928 as Coatesville Airport and was owned and operated by the City of Coatesville.
- In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
- 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.
- 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.
- 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.
Facts about Annette Island Airport (ANN):
- In addition to being known as "Annette Island Airport", another name for ANN is "Annette Island Army Airfield".
- The furthest airport from Annette Island Airport (ANN) is Port Alfred Airport (AFD), which is located 10,625 miles (17,100 kilometers) away in Port Alfred, South Africa.
- Because of Annette Island Airport's relatively low elevation of 119 feet, planes can take off or land at Annette Island 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 Annette Island Airport (ANN) is Metlakatla Seaplane Base (MTM), which is located only 6 miles (10 kilometers) N of ANN.
- Annette Island Airport (ANN) has 2 runways.