Nonstop flight route between Chatham, Alaska, United States and Astoria, Oregon, United States:
Departure Airport:
(57°30'54"N by 134°56'45"W)
Arrival Airport:
(46°9'29"N by 123°52'42"W)
Distance from CYM to AST:
913.39 miles (1,469.95 km)
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Jump to:
- About this route
- CYM Airport Information
- AST Airport Information
- Facts about CYM
- Facts about 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
- Map of Nearest Airports to AST
- List of Nearest Airports to AST
- Map of Furthest Airports from AST
- List of Furthest Airports from AST
About this route:
A direct, nonstop flight between Chatham Seaplane Base (CYM), Chatham, Alaska, United States and Astoria Regional Airport (AST), Astoria, Oregon, 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 Chatham Seaplane Base and Astoria Regional Airport, the route shown on this map most likely still appears to be a straight line.
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: | 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 |
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 Astoria Regional Airport (AST):
- 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 airport has no airline flights.
- Astoria Regional Airport (AST) has 2 runways.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 13.43 miles (21.61 km) E | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States |     |
| 2 | 35.85 miles (57.70 km) SSW | Sitka Rocky Gutierrez Airport (SIT) | Sitka, Alaska, United States | |
| 3 | 43.63 miles (70.21 km) NNW | Hoonah Airport (HNH) | Hoonah, Alaska, United States | |
| 4 | 51.12 miles (82.27 km) N | Funter Bay Seaplane Base (FNR) | Funter Bay, Alaska, United States | |
| 5 | 54.43 miles (87.60 km) SE | Kake Airport (KAE) | Kake, Alaska, United States | |
| 6 | 59.60 miles (95.92 km) NNE | Juneau International Airport (JNU) | Juneau, Alaska, United States | |
| 7 | 65.23 miles (104.97 km) NNW | Excursion Inlet Seaplane Base (EXI) | Excursion Inlet, Alaska, United States | |
| 8 | 68.80 miles (110.73 km) NNW | Gustavus Airport (GST) | Gustavus, Alaska, United States | |
| 9 | 69.74 miles (112.23 km) NW | Elfin Cove Seaplane Base (ELV) | Elfin Cove, Alaska, United States | |
| 10 | 88.33 miles (142.16 km) S | Port Alexander Seaplane Base (PTD) | Port Alexander, Alaska, United States | |
| 11 | 89.70 miles (144.36 km) ESE | Petersburg James A. Johnson Airport (PSG) | Petersburg, Alaska, United States | |
| 12 | 94.59 miles (152.22 km) SSE | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| 13 | 96.20 miles (154.81 km) SSE | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 14 | 118.73 miles (191.07 km) SE | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 15 | 120.28 miles (193.57 km) SE | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,575.54 miles (17,019.64 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,575.16 miles (17,019.03 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,561.60 miles (16,997.21 km) SSE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,499.21 miles (16,896.80 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,481.31 miles (16,868.00 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,465.89 miles (16,843.18 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,396.45 miles (16,731.42 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 8 | 10,395.83 miles (16,730.42 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,386.37 miles (16,715.20 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 10,372.26 miles (16,692.49 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,357.88 miles (16,669.36 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,357.79 miles (16,669.21 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,352.15 miles (16,660.12 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 10,339.72 miles (16,640.12 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,339.57 miles (16,639.89 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 47.01 miles (75.66 km) E | Southwest Washington Regional Airport (KLS) | Kelso, Washington, United States | |
| 2 | 55.72 miles (89.67 km) ENE | South Lewis County Airport (TDO) | Toledo, Washington, United States | |
| 3 | 56.24 miles (90.52 km) N | Bowerman Airport (HQM) | Hoquiam, Washington, United States | |
| 4 | 61.80 miles (99.46 km) SE | Portland-Hillsboro Airport (HIO) | Hillsboro / Portland, Oregon, United States | |
| 5 | 66.34 miles (106.76 km) S | Pacific City State Airport (PFC) | Pacific City, Oregon, United States | |
| 6 | 72.75 miles (117.08 km) NE | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 7 | 73.12 miles (117.67 km) ESE | Portland International Airport (PDX) | Portland, Oregon, United States | |
| 8 | 81.99 miles (131.95 km) NNE | Sanderson Field (SHN) | Shelton, Washington, United States | |
| 9 | 82.60 miles (132.94 km) ESE | Portland-Troutdale Airport (TTD) | Portland, Oregon, United States | |
| 10 | 88.56 miles (142.53 km) NE | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 11 | 94.90 miles (152.72 km) NE | McChord Field/McChord AFB (TCM) | Tacoma, Washington, United States | |
| 12 | 96.13 miles (154.70 km) SSE | McNary Field (SLE) | Salem, Oregon, United States | |
| 13 | 98.37 miles (158.32 km) NE | Tacoma Narrows Airport (TIW) | Tacoma, Washington, United States | |
| 14 | 101.70 miles (163.68 km) ESE | Cascade Locks State Airport (CZK) | Cascade Locks, Oregon, United States | |
| 15 | 106.04 miles (170.66 km) NNE | Bremerton National Airport (PWT) | Bremerton, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,891.90 miles (17,528.78 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,825.39 miles (17,421.73 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,720.32 miles (17,252.64 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,700.89 miles (17,221.37 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,692.41 miles (17,207.72 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,690.61 miles (17,204.83 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 7 | 10,672.68 miles (17,175.97 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 8 | 10,670.80 miles (17,172.95 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,665.11 miles (17,163.79 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,662.37 miles (17,159.37 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 11 | 10,657.77 miles (17,151.97 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 12 | 10,656.97 miles (17,150.68 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 13 | 10,655.24 miles (17,147.90 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 14 | 10,643.20 miles (17,128.53 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 15 | 10,633.57 miles (17,113.03 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |