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

Arrival Airport:

Distance from ASI to OSA:
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- About this route
- ASI Airport Information
- OSA Airport Information
- Facts about ASI
- Facts about OSA
- 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 OSA
- List of Nearest Airports to OSA
- Map of Furthest Airports from OSA
- List of Furthest Airports from OSA
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Osaka International Airport (OSA), Osaka, Japan would travel a Great Circle distance of 9,775 miles (or 15,731 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 Osaka International Airport, 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 Osaka International Airport. 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: |
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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 |
Arrival Airport Information:
IATA / ICAO Codes: | OSA / |
Airport Names: |
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Location: | Osaka, Japan |
GPS Coordinates: | 34°47'3"N by 135°26'21"E |
Area Served: | Osaka, Kyoto, and Kobe |
Operator/Owner: | Ministry of Land, Infrastructure and Transport (airfield); Osaka International Airport Terminal Co., Ltd. (terminal) |
Airport Type: | Public |
Elevation: | 39 feet (12 meters) |
# of Runways: | 2 |
View all routes: | Routes from OSA |
More Information: | OSA Maps & Info |
Facts about RAF Ascension (ASI):
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- 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 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 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.
Facts about Osaka International Airport (OSA):
- Because of Osaka International Airport's relatively low elevation of 39 feet, planes can take off or land at Osaka International 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 closest airport to Osaka International Airport (OSA) is Osaka International Airport (ITM), which is located only 0 mile (0 kilometer) N of OSA.
- Both Hyogo Prefecture and Itami City are supporters of expanded service at Itami, and established a formal coordination body in July 2013 to propose further reforms such as allowing international charter flights, and to engage in local efforts such as improving ground transportation and publicizing the airport's convenience.
- The government proposed changing Itami's status from first-class airport to second-class airport, which would saddle local governments with one-third of its operating costs.
- The furthest airport from Osaka International Airport (OSA) is Rio Grande Regional Airport (RIG), which is located 11,960 miles (19,248 kilometers) away in Rio Grande, Brazil.
- Osaka International Airport (OSA) has 2 runways.
- By the mid-1970s, the airport was subject to extensive slot restrictions, with operations limited to 200 jets and 170 propeller aircraft per day, and no takeoffs or landings allowed after 9 PM.
- Itami was renamed Osaka Airport following its return to Japanese control in March 1959.
- In addition to being known as "Osaka International Airport", other names for OSA include "Itami International Airport", "大阪国際空港", "Ōsaka Kokusai Kūkō", "ITM" and "RJOO".