Nonstop flight route between Johnstown, Pennsylvania, United States and Chatham, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from JST to CYM:
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- About this route
- JST Airport Information
- CYM Airport Information
- Facts about JST
- Facts about CYM
- Map of Nearest Airports to JST
- List of Nearest Airports to JST
- Map of Furthest Airports from JST
- List of Furthest Airports from JST
- 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 John Murtha Johnstown–Cambria County Airport (JST), Johnstown, Pennsylvania, United States and Chatham Seaplane Base (CYM), Chatham, Alaska, United States would travel a Great Circle distance of 2,714 miles (or 4,367 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 John Murtha Johnstown–Cambria County Airport and Chatham Seaplane Base, 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 John Murtha Johnstown–Cambria County Airport and Chatham Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | JST / KJST |
Airport Name: | John Murtha Johnstown–Cambria County Airport |
Location: | Johnstown, Pennsylvania, United States |
GPS Coordinates: | 40°18'56"N by 78°50'4"W |
Area Served: | Johnstown, Pennsylvania |
Operator/Owner: | Johnstown–Cambria County Airport Authority |
Airport Type: | Public |
Elevation: | 2284 feet (696 meters) |
# of Runways: | 2 |
View all routes: | Routes from JST |
More Information: | JST 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 John Murtha Johnstown–Cambria County Airport (JST):
- John Murtha Johnstown–Cambria County Airport (JST) has 2 runways.
- Federal Aviation Administration records say the airport had 7,634 passenger boardings in calendar year 2008, 7,956 in 2009 and 8,457 in 2010.
- The closest airport to John Murtha Johnstown–Cambria County Airport (JST) is Indiana County-Jimmy Stewart Airport (IDI), which is located 26 miles (42 kilometers) NNW of JST.
- The airport opened in 1948 as Johnstown Municipal Airport,Allegheny Airlines was its airline until Allegheny Commuter took over in 1970.
- The furthest airport from John Murtha Johnstown–Cambria County Airport (JST) is Margaret River Airport (MGV), which is located 11,553 miles (18,593 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Chatham Seaplane Base (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.
- 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.