Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Belfast, Northern Ireland, United Kingdom:

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Belfast International Airport (BFS), Belfast, Northern Ireland, United Kingdom would travel a Great Circle distance of 4,464 miles (or 7,184 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 Belfast 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 Seattle–Tacoma International Airport and Belfast 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 Seattle–Tacoma International Airport (SEA):

• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• A new control tower was built beginning in 2001 and opened November 2004, at a cost of $26 million.
• The April 1957 OAG shows 216 departures a week on United, 80 Northwest, 35 Western, 21 Trans-Canada, 20 Pan Am, 20 Pacific Northern, and 10 Alaska.
• 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.
• After the death of U.S.
• The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
• The airport has a Central Terminal building, which was renovated and expanded in 2003.
• 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.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• Seattle's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
• 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 top five carriers at the airport in number of passengers carried in 2012 were Alaska Airlines, Horizon Air, Delta Air Lines, Southwest Airlines, and United Airlines.
• 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.

Facts about Belfast International Airport (BFS):

• Despite these additional flights, passengers at Belfast International did not rise beyond 6 million in 2008 as some had predicted but in fact fell by 10,000 passengers to 5.2 million.
• Because of Belfast International Airport's relatively low elevation of 268 feet, planes can take off or land at Belfast 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.
• The closest airport to Belfast International Airport (BFS) is George Best Belfast City Airport (BHD), which is located only 14 miles (23 kilometers) E of BFS.
• One of the outcomes of the wartime airfield construction programme was the building of Nutts Corner Airport, just 3 mi from Aldergrove.
• Belfast International Airport (BFS) has 2 runways.
• Belfast International Airport handled 4,023,336 passengers last year.
• In addition to being known as "Belfast International Airport", another name for BFS is "Belfast/Aldergrove Airport".
• The furthest airport from Belfast International Airport (BFS) is Ryan's Creek Aerodrome (SZS), which is located 11,847 miles (19,065 kilometers) away in Stewart Island, New Zealand.
• During the Second World War, Aldergrove remained an RAF base particularly for the Coastal Command.
• The airport was privatised in 1994.
• Belfast International has a CAA Public Use Aerodrome Licence that allows flights for the public transport of passengers or for flying instruction.
• In 2005 Continental Airlines launched the first ever direct scheduled service to Newark, and direct scheduled services were later introduced to Vancouver with Zoom Airlines but have now ceased following the carrier's demise in August 2008.