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

About this route:

A direct, nonstop flight between London Heathrow Airport (LHR), London, England, United Kingdom and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 4,786 miles (or 7,702 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 Heathrow Airport and Seattle–Tacoma International 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 Heathrow Airport and Seattle–Tacoma International 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 London Heathrow Airport (LHR):

• The airport has been criticised in recent years for overcrowding and delays.
• Heathrow is 14 mi west of central London, near the south end of the London Borough of Hillingdon on a parcel of land that is designated part of the Metropolitan Green Belt.
• Heathrow Airport started in 1929 as a small airfield on land south-east of the hamlet of Heathrow from which the airport takes its name.
• The furthest airport from London Heathrow Airport (LHR) is Chatham Islands (CHT), which is located 11,875 miles (19,112 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• London Heathrow Airport (LHR) has 2 runways.
• In the 1950s, Heathrow had six runways, arranged in three pairs at different angles in the shape of a hexagram with the permanent passenger terminal in the middle and the older terminal along the north edge of the field, and two of its runways would always be within 30° of the wind direction.
• Because of London Heathrow Airport's relatively low elevation of 83 feet, planes can take off or land at London Heathrow 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.
• The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.

Facts about Seattle–Tacoma International Airport (SEA):

• The airport has service to destinations throughout North America, Europe, the Middle East, and East Asia.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• There is also a scheduled bus service to downtown Vancouver, Canada, through Quick Shuttle, with other pick-up stops at downtown Seattle, Bellingham International Airport, and drop-off stops just inside the Canadian–U.S.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
• 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".
• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
• A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
• 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 closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.