Nonstop flight route between Chatham, Alaska, United States and Choibalsan, Mongolia:
Departure Airport:

Arrival Airport:

Distance from CYM to COQ:
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- About this route
- CYM Airport Information
- COQ Airport Information
- Facts about CYM
- Facts about COQ
- 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 COQ
- List of Nearest Airports to COQ
- Map of Furthest Airports from COQ
- List of Furthest Airports from COQ
About this route:
A direct, nonstop flight between Chatham Seaplane Base (CYM), Chatham, Alaska, United States and Choibalsan Airport (COQ), Choibalsan, Mongolia would travel a Great Circle distance of 4,131 miles (or 6,648 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 Choibalsan 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 Choibalsan 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: | COQ / ZMCD |
Airport Name: | Choibalsan Airport |
Location: | Choibalsan, Mongolia |
GPS Coordinates: | 48°8'8"N by 114°38'45"E |
Area Served: | Choibalsan, Mongolia |
Operator/Owner: | Civil Aviation Authority of Mongolia |
Airport Type: | Public / Military |
Elevation: | 2457 feet (749 meters) |
# of Runways: | 1 |
View all routes: | Routes from COQ |
More Information: | COQ Maps & Info |
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.
Facts about Choibalsan Airport (COQ):
- The closest airport to Choibalsan Airport (COQ) is Hulunbuir Hailar Airport (HLD), which is located 248 miles (398 kilometers) ENE of COQ.
- The furthest airport from Choibalsan Airport (COQ) is Puerto Deseado Airport (PUD), which is nearly antipodal to Choibalsan Airport (meaning Choibalsan Airport is almost on the exact opposite side of the Earth from Puerto Deseado Airport), and is located 12,399 miles (19,955 kilometers) away in Puerto Deseado, Santa Cruz Province, Argentina.
- Choibalsan Airport (COQ) currently has only 1 runway.
- Choibalsan Airport handled 6,200 passengers last year.