Nonstop flight route between Shirahama, Japan and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from SHM to ASI:
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- About this route
- SHM Airport Information
- ASI Airport Information
- Facts about SHM
- Facts about ASI
- Map of Nearest Airports to SHM
- List of Nearest Airports to SHM
- Map of Furthest Airports from SHM
- List of Furthest Airports from SHM
- 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 Nanki-Shirahama Airport (SHM), Shirahama, Japan and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 9,817 miles (or 15,799 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 Nanki-Shirahama 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 Nanki-Shirahama 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: | SHM / RJBD |
Airport Names: |
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Location: | Shirahama, Japan |
GPS Coordinates: | 33°39'43"N by 135°21'51"E |
Operator/Owner: | Wakayama Prefecture |
Airport Type: | Public |
Elevation: | 293 feet (89 meters) |
# of Runways: | 1 |
View all routes: | Routes from SHM |
More Information: | SHM 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 Nanki-Shirahama Airport (SHM):
- The closest airport to Nanki-Shirahama Airport (SHM) is Kansai International Airport (KIX), which is located 54 miles (87 kilometers) N of SHM.
- Nanki-Shirahama Airport (SHM) currently has only 1 runway.
- The furthest airport from Nanki-Shirahama Airport (SHM) is Diomício Freitas/Forquilhinha Airport (CCM), which is located 11,994 miles (19,302 kilometers) away in Criciúma, Santa Catarina, Brazil.
- In addition to being known as "Nanki-Shirahama Airport", other names for SHM include "南紀白浜空港" and "Nanki Shirahama Kūkō".
- Because of Nanki-Shirahama Airport's relatively low elevation of 293 feet, planes can take off or land at Nanki-Shirahama 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.
Facts about RAF Ascension (ASI):
- In 1939 Ascension became important as a HF/DF radio station covering trade routes.
- 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.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- The station comes under the overall jurisdiction of the Commander British Forces South Atlantic Islands, an officer of one-star rank.