Nonstop flight route between Chatham, Alaska, United States and West Chester, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from CYM to OQN:
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- About this route
- CYM Airport Information
- OQN Airport Information
- Facts about CYM
- Facts about OQN
- Map of Nearest Airports to CYM
- List of Nearest Airports to CYM
- Map of Furthest Airports from CYM
- List of Furthest Airports from CYM
- Map of Nearest Airports to OQN
- List of Nearest Airports to OQN
- Map of Furthest Airports from OQN
- List of Furthest Airports from OQN
About this route:
A direct, nonstop flight between Chatham Seaplane Base (CYM), Chatham, Alaska, United States and Brandywine Airport (OQN), West Chester, Pennsylvania, United States would travel a Great Circle distance of 2,850 miles (or 4,587 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 Chatham Seaplane Base and Brandywine 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 Chatham Seaplane Base and Brandywine Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CYM / |
Airport Name: | Chatham Seaplane Base |
Location: | Chatham, Alaska, United States |
GPS Coordinates: | 57°30'54"N by 134°56'45"W |
Area Served: | Chatham, Alaska |
Operator/Owner: | Chatham Cannery Ltd. |
Airport Type: | Public use |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from CYM |
More Information: | CYM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OQN / KOQN |
Airport Name: | Brandywine Airport |
Location: | West Chester, Pennsylvania, United States |
GPS Coordinates: | 39°59'24"N by 75°34'54"W |
Area Served: | West Goshen Township, Pennsylvania |
Operator/Owner: | New Brandywine Airport Club, Inc. |
Airport Type: | Public |
Elevation: | 466 feet (142 meters) |
# of Runways: | 1 |
View all routes: | Routes from OQN |
More Information: | OQN Maps & Info |
Facts about Chatham Seaplane Base (CYM):
- Chatham Seaplane Base (CYM) currently has only 1 runway.
- The furthest airport from Chatham Seaplane Base (CYM) is Port Alfred Airport (AFD), which is located 10,576 miles (17,020 kilometers) away in Port Alfred, South Africa.
- Because of Chatham Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Chatham Seaplane Base 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 Chatham Seaplane Base (CYM) is Angoon Seaplane Base (AGN), which is located only 13 miles (22 kilometers) E of CYM.
Facts about Brandywine Airport (OQN):
- The furthest airport from Brandywine Airport (OQN) is Margaret River Airport (MGV), which is located 11,714 miles (18,852 kilometers) away in Margaret River, Western Australia, Australia.
- Brandywine Airport covers 44 acres at an elevation of 466 feet.
- Maintenance is provided by Penn Avionics and Flight Dynamics.
- Brandywine Airport (OQN) currently has only 1 runway.
- The closest airport to Brandywine Airport (OQN) is Chester County G. O. Carlson Airport (CTH), which is located only 15 miles (24 kilometers) W of OQN.
- Because of Brandywine Airport's relatively low elevation of 466 feet, planes can take off or land at Brandywine 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.