Nonstop flight route between Southend, Essex (near London) United Kingdom and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from SEN to ASI:
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- About this route
- SEN Airport Information
- ASI Airport Information
- Facts about SEN
- Facts about ASI
- Map of Nearest Airports to SEN
- List of Nearest Airports to SEN
- Map of Furthest Airports from SEN
- List of Furthest Airports from SEN
- 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 London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 4,211 miles (or 6,776 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 London Southend 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 London Southend 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: | SEN / EGMC |
Airport Name: | London Southend Airport |
Location: | Southend, Essex (near London) United Kingdom |
GPS Coordinates: | 51°34'13"N by 0°41'35"E |
Area Served: | Southend, Essex and east London areas |
Operator/Owner: | Stobart Group |
Airport Type: | Public |
Elevation: | 55 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from SEN |
More Information: | SEN 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 London Southend Airport (SEN):
- Because of London Southend Airport's relatively low elevation of 55 feet, planes can take off or land at London Southend 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.
- London Southend Airport (SEN) currently has only 1 runway.
- A frequent rail service to London Liverpool Street, with a journey time of about 53 minutes, runs via Stratford from Southend Airport railway station located about 200 m from the main terminal.
- The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
- The furthest airport from London Southend Airport (SEN) is Chatham Islands (CHT), which is located 11,885 miles (19,126 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Companies located at and around the airport employ over 1,000 skilled workers, providing services such as engineering and maintenance work on airliners, including re-spraying, refurbishment, upgrades to avionics, manufacture of aircraft seats and the installation of new or hush-kitted engines.
- British World Airlines was based at Southend, previously they operated as British Air Ferries, and before that, as British United Air Ferries – formed from the merger of Channel Air Bridge and Silver City Airways.
- The airport was officially opened as a municipal airport on 18 September 1935 by the Under-Secretary of State for Air, Sir Philip Sassoon, who arrived in his de Havilland Leopard Moth.
- London Southend Airport handled 969,912 passengers last year.
Facts about RAF Ascension (ASI):
- RAF Ascension, more commonly known as RAF Ascension Island, and sometimes known as Wideawake Airfield or Ascension Island Base, is a British Royal Air Force station on Ascension Island in the Atlantic Ocean, near the Equator.
- The Target Tracking Radar Station was a Nike Zeus test facility for tracking reentry vehicles from Cape Canaveral missile launches.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- 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 closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- Ascension Island Auxiliary Field was being built by 181 men from Saint Helena by 1957
- 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.