Nonstop flight route between Georgetown, Ascension Island, Saint Helena and St. Johns, Arizona, United States:
Departure Airport:

Arrival Airport:

Distance from ASI to SJN:
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- About this route
- ASI Airport Information
- SJN Airport Information
- Facts about ASI
- Facts about SJN
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
- Map of Nearest Airports to SJN
- List of Nearest Airports to SJN
- Map of Furthest Airports from SJN
- List of Furthest Airports from SJN
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and St. Johns Industrial Air Park (SJN), St. Johns, Arizona, United States would travel a Great Circle distance of 6,812 miles (or 10,963 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 RAF Ascension and St. Johns Industrial Air Park, 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 RAF Ascension and St. Johns Industrial Air Park. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ASI / FHAW |
Airport Names: |
|
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 |
Arrival Airport Information:
IATA / ICAO Codes: | SJN / KSJN |
Airport Name: | St. Johns Industrial Air Park |
Location: | St. Johns, Arizona, United States |
GPS Coordinates: | 34°31'6"N by 109°22'44"W |
Area Served: | St. Johns, Arizona |
Operator/Owner: | City of St. Johns |
Airport Type: | Public |
Elevation: | 5737 feet (1,749 meters) |
# of Runways: | 2 |
View all routes: | Routes from SJN |
More Information: | SJN Maps & Info |
Facts about RAF Ascension (ASI):
- RAF Ascension Island was re-garrisoned by the RAF in 1982 and used extensively as a staging base during the Falklands War.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- The NASA Tracking Station at Devil's Ashpit and the Cable & Wireless Earth Station at Donkey Plain were built in the "mid-sixties" for space operations and communications, including the latter's use for transmitting "microwave borne data via the Early Bird Satellite back to the NASA facility at Andover, Maine.
- RAF Ascension Island is also the refuelling point for the Ministry of Defence's South Atlantic Air Bridge flights to RAF Mount Pleasant, on the Falkland Islands, from RAF Brize Norton in Oxfordshire, in the UK.
- 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.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
Facts about St. Johns Industrial Air Park (SJN):
- St. Johns Industrial Air Park (SJN) has 2 runways.
- The closest airport to St. Johns Industrial Air Park (SJN) is Show Low Regional Airport (SOW), which is located 40 miles (64 kilometers) WSW of SJN.
- The furthest airport from St. Johns Industrial Air Park (SJN) is Sir Gaëtan Duval Airport (RRG), which is located 11,324 miles (18,225 kilometers) away in Rodrigues Island, Mauritius.
- Because of St. Johns Industrial Air Park's high elevation of 5,737 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SJN. Combined with a high temperature, this could make SJN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.