Nonstop flight route between Oshkosh, Wisconsin, United States and Chatham, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from OSH to CYM:
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- About this route
- OSH Airport Information
- CYM Airport Information
- Facts about OSH
- Facts about CYM
- Map of Nearest Airports to OSH
- List of Nearest Airports to OSH
- Map of Furthest Airports from OSH
- List of Furthest Airports from OSH
- 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 Wittman Regional Airport (OSH), Oshkosh, Wisconsin, United States and Chatham Seaplane Base (CYM), Chatham, Alaska, United States would travel a Great Circle distance of 2,179 miles (or 3,506 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 Wittman 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: | OSH / KOSH |
Airport Name: | Wittman Regional Airport |
Location: | Oshkosh, Wisconsin, United States |
GPS Coordinates: | 43°59'3"N by 88°33'24"W |
Area Served: | Oshkosh, Wisconsin |
Airport Type: | Public |
Elevation: | 808 feet (246 meters) |
# of Runways: | 4 |
View all routes: | Routes from OSH |
More Information: | OSH 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 Wittman Regional Airport (OSH):
- Because of Wittman Regional Airport's relatively low elevation of 808 feet, planes can take off or land at Wittman 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 furthest airport from Wittman Regional Airport (OSH) is Margaret River Airport (MGV), which is located 10,996 miles (17,696 kilometers) away in Margaret River, Western Australia, Australia.
- The airport is the site of the annual Experimental Aircraft Association's AirVenture Oshkosh, an experimental aircraft and sport aviation airshow.
- Wittman Regional Airport (OSH) has 4 runways.
- The closest airport to Wittman Regional Airport (OSH) is Fond du Lac County Airport (FLD), which is located only 15 miles (24 kilometers) SSE of OSH.
Facts about Chatham Seaplane Base (CYM):
- 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.
- 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.