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

Arrival Airport:

Distance from BFI to SEN:
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- About this route
- BFI Airport Information
- SEN Airport Information
- Facts about BFI
- Facts about SEN
- Map of Nearest Airports to BFI
- List of Nearest Airports to BFI
- Map of Furthest Airports from BFI
- List of Furthest Airports from BFI
- Map of Nearest Airports to SEN
- List of Nearest Airports to SEN
- Map of Furthest Airports from SEN
- List of Furthest Airports from SEN
About this route:
A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and London Southend Airport (SEN), Southend, Essex (near London) United Kingdom would travel a Great Circle distance of 4,806 miles (or 7,734 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 King County International Airport and London Southend 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 King County International Airport and London Southend Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | BFI / KBFI |
Airport Names: |
|
Location: | Seattle, Washington, United States |
GPS Coordinates: | 47°31'48"N by 122°18'6"W |
Area Served: | Seattle, Washington |
Airport Type: | Public |
Elevation: | 21 feet (6 meters) |
# of Runways: | 2 |
View all routes: | Routes from BFI |
More Information: | BFI Maps & Info |
Arrival 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 |
Facts about King County International Airport (BFI):
- The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.
- Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County 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.
- In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
- At one point Aeroamerica scheduled a Boeing 720 to Spokane.
- King County International Airport (BFI) has 2 runways.
- Boeing Field/King County International Airport covers 634 acres at an elevation of 21 feet above mean sea level.
- The Boeing Company has facilities at the airport.
Facts about London Southend Airport (SEN):
- London Southend Airport (SEN) currently has only 1 runway.
- Annual passenger traffic first peaked in 1967, at 692,000.
- 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 was voted the best airport in Britain by the consumer group Which?
- Southend Airport has an excellent weather record and is used by airlines as a diversion alternative when adverse weather or incidents close other London airports.
- 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.
- BKS commenced airline operations from Southend Airport in October 1951 as BKS Aero Charter with a Douglas DC-3.
- The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.