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

About this route:

A direct, nonstop flight between Anglesey Airport (HLY), Anglesey, Wales, United Kingdom and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 4,582 miles (or 7,374 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 Anglesey 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 Anglesey 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 Anglesey Airport (HLY):

• In addition to being known as "Anglesey Airport", other names for HLY include "Maes Awyr Môn", "RAF Valley" and "VLY".
• Anglesey Airport is an airport owned by the Isle of Anglesey County Council on land leased from the Defence Infrastructure Organisation.
• The furthest airport from Anglesey Airport (HLY) is Ryan's Creek Aerodrome (SZS), which is located 11,891 miles (19,136 kilometers) away in Stewart Island, New Zealand.
• Anglesey Airport (HLY) has 3 runways.
• Because of Anglesey Airport's relatively low elevation of 37 feet, planes can take off or land at Anglesey 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 Anglesey Airport (HLY) is Isle of Man Airport (IOM), which is located 58 miles (93 kilometers) N of HLY.
• For residents of Anglesey, the air service is significantly quicker than surface transport.
• Plans put forward in early 2006 by the National Assembly for Wales have led to a subsidised weekday air service between the airport and Cardiff Airport, 12 miles west of the Welsh capital in the hope of improving the economy of Anglesey and North Wales in general.

Facts about Seattle–Tacoma International Airport (SEA):

• 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 closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
• 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.
• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
• Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the airport.
• In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• The North Satellite Terminal has only received limited upgrades and is in need of modernization.
• A new control tower was built beginning in 2001 and opened November 2004, at a cost of $26 million.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".