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

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and London Southend Airport (SEN), Southend, Essex (near London) United Kingdom would travel a Great Circle distance of 4,811 miles (or 7,742 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 Seattle–Tacoma 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 Seattle–Tacoma 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:

Arrival Airport Information:

Facts about Seattle–Tacoma International Airport (SEA):

• The North Satellite Terminal has only received limited upgrades and is in need of modernization.
• Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
• Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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 "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
• The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
• The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
• The Seattle–Tacoma International Airport, also known as Sea–Tac Airport or Sea–Tac /ˈsiːtæk/, is an American airport.

Facts about London Southend Airport (SEN):

• London Southend Airport (SEN) currently has only 1 runway.
• Southend was voted the best airport in Britain by the consumer group Which?
• 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.
• 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.
• 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 handled 969,912 passengers last year.
• Holland Aero Lines operated a Rotterdam to Southend service with a GAF Nomad aircraft between 4 February 1985 and December 1986.
• EasyJet began operating services by opening a base at Southend in April 2012.
• A four-star Holiday Inn hotel located adjacent to the airport entrance opened on 1 October 2012.
• The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
• The airport is located between Rochford and Southend town centres, 1.5 NM north of Southend, in the county of Essex, 36 miles to the east of central London.