Nonstop flight route between Johnstown, Pennsylvania, United States and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from JST to ASI:
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- About this route
- JST Airport Information
- ASI Airport Information
- Facts about JST
- Facts about ASI
- 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 ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
About this route:
A direct, nonstop flight between John Murtha Johnstown–Cambria County Airport (JST), Johnstown, Pennsylvania, United States and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 5,275 miles (or 8,489 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 RAF Ascension, 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 RAF Ascension. 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: | ASI / FHAW |
Airport Names: |
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Location: | Georgetown, Ascension Island, Saint Helena |
GPS Coordinates: | 7°58'9"S by 14°23'38"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from ASI |
More Information: | ASI Maps & Info |
Facts about John Murtha Johnstown–Cambria County Airport (JST):
- 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 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.
- John Murtha Johnstown–Cambria County Airport (JST) has 2 runways.
- Johnstown–Cambria County Airport is home to several military units.
Facts about RAF Ascension (ASI):
- The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- Ascension Island Auxiliary Field was being built by 181 men from Saint Helena by 1957
- The RAF presence on Ascension is backed up by United States Air Force personnel, who contribute a similar number of service personnel to ensure the effective running of the station, under the command of Captain Eduard Rodriguez, who is responsible to the RAF Station Commander.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".