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

Arrival Airport:

Distance from CYM to SEG:
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- About this route
- CYM Airport Information
- SEG Airport Information
- Facts about CYM
- Facts about SEG
- 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 SEG
- List of Nearest Airports to SEG
- Map of Furthest Airports from SEG
- List of Furthest Airports from SEG
About this route:
A direct, nonstop flight between Chatham Seaplane Base (CYM), Chatham, Alaska, United States and Penn Valley Airport (SEG), Selinsgrove, Pennsylvania, United States would travel a Great Circle distance of 2,762 miles (or 4,445 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 Penn Valley 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 Penn Valley 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: | SEG / KSEG |
Airport Name: | Penn Valley Airport |
Location: | Selinsgrove, Pennsylvania, United States |
GPS Coordinates: | 40°49'15"N by 76°51'51"W |
Area Served: | Selinsgrove, Pennsylvania |
Operator/Owner: | Penn Valley Airport Authority |
Airport Type: | Public |
Elevation: | 463 feet (141 meters) |
# of Runways: | 1 |
View all routes: | Routes from SEG |
More Information: | SEG Maps & Info |
Facts about Chatham Seaplane Base (CYM):
- 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 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.
- The closest airport to Chatham Seaplane Base (CYM) is Angoon Seaplane Base (AGN), which is located only 13 miles (22 kilometers) E of CYM.
- Chatham Seaplane Base (CYM) currently has only 1 runway.
Facts about Penn Valley Airport (SEG):
- Penn Valley Airport (SEG) currently has only 1 runway.
- The furthest airport from Penn Valley Airport (SEG) is Margaret River Airport (MGV), which is located 11,627 miles (18,711 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Penn Valley Airport (SEG) is Williamsport Regional Airport (IPT), which is located 29 miles (47 kilometers) N of SEG.
- Because of Penn Valley Airport's relatively low elevation of 463 feet, planes can take off or land at Penn Valley 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.