Nonstop flight route between Georgetown, Ascension Island, Saint Helena and Bonthe, Sierra Leone:
Departure Airport:

Arrival Airport:

Distance from ASI to BTE:
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- About this route
- ASI Airport Information
- BTE Airport Information
- Facts about ASI
- Facts about BTE
- 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 BTE
- List of Nearest Airports to BTE
- Map of Furthest Airports from BTE
- List of Furthest Airports from BTE
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Sherbro International Airport (BTE), Bonthe, Sierra Leone would travel a Great Circle distance of 1,079 miles (or 1,736 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 relatively short distance between RAF Ascension and Sherbro International Airport, the route shown on this map most likely still appears to be a straight line.
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: | BTE / GFBN |
Airport Name: | Sherbro International Airport |
Location: | Bonthe, Sierra Leone |
GPS Coordinates: | 7°31'54"N by 12°31'5"W |
Area Served: | Bonthe |
Operator/Owner: | Sierra Leone Airports Authority |
Airport Type: | Public (closed) |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from BTE |
More Information: | BTE Maps & Info |
Facts about RAF Ascension (ASI):
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- 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.
- 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.
Facts about Sherbro International Airport (BTE):
- The furthest airport from Sherbro International Airport (BTE) is Ulawa Airport (RNA), which is nearly antipodal to Sherbro International Airport (meaning Sherbro International Airport is almost on the exact opposite side of the Earth from Ulawa Airport), and is located 12,028 miles (19,357 kilometers) away in Arona, Ulawa Island, Solomon Islands.
- The closest airport to Sherbro International Airport (BTE) is Gbangbatok Airport (GBK), which is located 22 miles (35 kilometers) NNE of BTE.
- Sherbro International Airport (BTE) currently has only 1 runway.
- Because of Sherbro International Airport's relatively low elevation of 14 feet, planes can take off or land at Sherbro 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.