Nonstop flight route between Astoria, Oregon, United States and Chatham, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from AST to CYM:
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- About this route
- AST Airport Information
- CYM Airport Information
- Facts about AST
- Facts about CYM
- Map of Nearest Airports to AST
- List of Nearest Airports to AST
- Map of Furthest Airports from AST
- List of Furthest Airports from AST
- 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 Astoria Regional Airport (AST), Astoria, Oregon, United States and Chatham Seaplane Base (CYM), Chatham, Alaska, United States would travel a Great Circle distance of 913 miles (or 1,470 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 relatively short distance between Astoria Regional Airport and Chatham Seaplane Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | AST / KAST |
Airport Name: | Astoria Regional Airport |
Location: | Astoria, Oregon, United States |
GPS Coordinates: | 46°9'29"N by 123°52'42"W |
Area Served: | Astoria, Oregon |
Operator/Owner: | Port of Astoria |
Airport Type: | Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 2 |
View all routes: | Routes from AST |
More Information: | AST 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 Astoria Regional Airport (AST):
- Astoria Regional Airport (AST) has 2 runways.
- Federal Aviation Administration records say the airport had 1,851 passenger boardings in calendar year 2008, 1,531 in 2009 and 3,482 in 2010.
- Because of Astoria Regional Airport's relatively low elevation of 15 feet, planes can take off or land at Astoria Regional 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 Astoria Regional Airport (AST) is Southwest Washington Regional Airport (KLS), which is located 47 miles (76 kilometers) E of AST.
- The furthest airport from Astoria Regional Airport (AST) is Tôlanaro Airport (FTU), which is located 10,892 miles (17,529 kilometers) away in Tôlanaro, Madagascar.
Facts about Chatham Seaplane Base (CYM):
- The closest airport to Chatham Seaplane Base (CYM) is Angoon Seaplane Base (AGN), which is located only 13 miles (22 kilometers) E of 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.
- 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.