Nonstop flight route between Portland, Maine, United States and Chatham, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from PWM to CYM:
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- About this route
- PWM Airport Information
- CYM Airport Information
- Facts about PWM
- Facts about CYM
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
- Map of Nearest Airports to CYM
- List of Nearest Airports to CYM
- Map of Furthest Airports from CYM
- List of Furthest Airports from CYM
About this route:
A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Chatham Seaplane Base (CYM), Chatham, Alaska, United States would travel a Great Circle distance of 2,869 miles (or 4,617 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 Portland International Jetport and Chatham Seaplane Base, 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 Portland International Jetport and Chatham Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM Maps & Info |
Arrival 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 |
Facts about Portland International Jetport (PWM):
- In 1995 a terminal building improvement project was undertaken to add two-second-level boarding gates, as well as additional space for ticketing, operations, departure lounge, concessions, and an international customs facility.
- The present airport started to take shape in the 1950s.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
- In 2008 Delta Air Lines resumed mainline service to Portland, a daily flight to Atlanta on a McDonnell Douglas MD-88.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
- Portland International Jetport (PWM) has 2 runways.
- In June 1983 United Airlines arrived in Portland, planning to be the only airline to serve 50 states.
- In 1972 Northeast Airlines was bought by Delta Air Lines which retained its routes to Bangor, Boston, and New York.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
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.