Nonstop flight route between Southend, Essex (near London) United Kingdom and San Juan Island, Washington, United States:

About this route:

A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and Roche Harbor Seaplane Base (RCE), San Juan Island, Washington, United States would travel a Great Circle distance of 4,766 miles (or 7,670 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 Roche Harbor Seaplane Base, 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 Roche Harbor Seaplane Base. 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 London Southend Airport (SEN):

• Dan-Air began its life at Southend with a Douglas DC-3, registration G-AMSU, fulfilling a six-month contract to operate a series of charter flights between Southend and West Berlin's Tempelhof Airport.
• The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of 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.
• However in 1939, the Air Ministry requisitioned the airfield and it was known as RAF Rochford during World War II.
• 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.
• Aircraft ground handling at the airport is provided by the airport-owned Southend Handling, who also assist companies, groups or individuals in chartering aircraft to or from the airport.
• The airport is served by buses operated by Arriva Southend from the airport entrance to Southend, Rochford, Ashingdon, Hawkwell, Hockley, Eastwood and Rayleigh.
• London Southend Airport handled 969,912 passengers last year.
• 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.
• 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.

Facts about Roche Harbor Seaplane Base (RCE):

• The furthest airport from Roche Harbor Seaplane Base (RCE) is Tôlanaro Airport (FTU), which is located 10,722 miles (17,256 kilometers) away in Tôlanaro, Madagascar.
• Roche Harbor Seaplane Base (RCE) has 2 runways.
• In addition to being known as "Roche Harbor Seaplane Base", another name for RCE is "W39".
• The closest airport to Roche Harbor Seaplane Base (RCE) is Friday Harbor Seaplane Base (FBS), which is located only 8 miles (14 kilometers) SE of RCE.
• Because of Roche Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Roche Harbor Seaplane Base 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.