Nonstop flight route between Chatham, Alaska, United States and Yonaguni, Okinawa, Japan:
Departure Airport:

Arrival Airport:

Distance from CYM to OGN:
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- About this route
- CYM Airport Information
- OGN Airport Information
- Facts about CYM
- Facts about OGN
- 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 OGN
- List of Nearest Airports to OGN
- Map of Furthest Airports from OGN
- List of Furthest Airports from OGN
About this route:
A direct, nonstop flight between Chatham Seaplane Base (CYM), Chatham, Alaska, United States and Yonaguni Airport (OGN), Yonaguni, Okinawa, Japan would travel a Great Circle distance of 5,230 miles (or 8,417 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 Yonaguni 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 Yonaguni 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: | OGN / ROYN |
Airport Names: |
|
Location: | Yonaguni, Okinawa, Japan |
GPS Coordinates: | 24°28'3"N by 122°58'46"E |
Area Served: | Yonaguni, Okinawa, Japan |
Operator/Owner: | Okinawa Prefecture |
Airport Type: | Public |
Elevation: | 49 feet (15 meters) |
# of Runways: | 1 |
View all routes: | Routes from OGN |
More Information: | OGN 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.
- Chatham Seaplane Base (CYM) currently has only 1 runway.
- The closest airport to Chatham Seaplane Base (CYM) is Angoon Seaplane Base (AGN), which is located only 13 miles (22 kilometers) E of CYM.
- 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 Yonaguni Airport (OGN):
- Because of Yonaguni Airport's relatively low elevation of 49 feet, planes can take off or land at Yonaguni 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 furthest airport from Yonaguni Airport (OGN) is Silvio Pettirossi International Airport (ASU), which is nearly antipodal to Yonaguni Airport (meaning Yonaguni Airport is almost on the exact opposite side of the Earth from Silvio Pettirossi International Airport), and is located 12,375 miles (19,916 kilometers) away in Asunción, Paraguay.
- Yonaguni Airport (OGN) currently has only 1 runway.
- The closest airport to Yonaguni Airport (OGN) is Hateruma Airport (HTR), which is located 59 miles (95 kilometers) ESE of OGN.
- In addition to being known as "Yonaguni Airport", other names for OGN include "Yonaguni Jima Airport", "与那国空港" and "Yonaguni Kūkō".