Nonstop flight route between Southend, Essex (near London) United Kingdom and Alamosa, Colorado, United States:
Departure Airport:

Arrival Airport:

Distance from SEN to ALS:
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- About this route
- SEN Airport Information
- ALS Airport Information
- Facts about SEN
- Facts about ALS
- 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 ALS
- List of Nearest Airports to ALS
- Map of Furthest Airports from ALS
- List of Furthest Airports from ALS
About this route:
A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and San Luis Valley Regional Airport (ALS), Alamosa, Colorado, United States would travel a Great Circle distance of 4,864 miles (or 7,828 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 San Luis Valley Regional 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 London Southend Airport and San Luis Valley Regional Airport. 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: | ALS / KALS |
Airport Names: |
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Location: | Alamosa, Colorado, United States |
GPS Coordinates: | 37°26'6"N by 105°51'59"W |
Area Served: | Alamosa, Colorado |
Operator/Owner: | City and County of Alamosa |
Airport Type: | Public |
Elevation: | 7539 feet (2,298 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALS |
More Information: | ALS Maps & Info |
Facts about London Southend Airport (SEN):
- The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
- London Southend Airport (SEN) currently has only 1 runway.
- 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.
- In 1967 the first steps to establish an aviation museum at the airport were taken, resulting in the official opening 26 May 1972 of the Southend Historic Aircraft Museum on the western boundary of the airport.
- 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.
- Southend Airport handles mainly scheduled passenger, charter and business flights, cargo flights, pilot training, and recreational flying.
- East Anglian Flying Services moved to Southend on 5 January 1947, their first scheduled service being a Southend—Rochester feeder service.
- London Southend Airport handled 969,912 passengers last year.
- 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.
- EasyJet began operating services by opening a base at Southend in April 2012.
Facts about San Luis Valley Regional Airport (ALS):
- In addition to being known as "San Luis Valley Regional Airport", another name for ALS is "Bergman Field".
- The closest airport to San Luis Valley Regional Airport (ALS) is Stevens Field (FAA: PSO) (PGO), which is located 66 miles (106 kilometers) W of ALS.
- San Luis Valley Regional Airport (ALS) has 2 runways.
- Because of San Luis Valley Regional Airport's high elevation of 7,539 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ALS. Combined with a high temperature, this could make ALS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from San Luis Valley Regional Airport (ALS) is Sir Gaëtan Duval Airport (RRG), which is located 11,054 miles (17,790 kilometers) away in Rodrigues Island, Mauritius.