Nonstop flight route between Seattle, Washington, United States and Shannon (County Clare), Ireland:

About this route:

A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and Shannon Airport (SNN), Shannon (County Clare), Ireland would travel a Great Circle distance of 4,483 miles (or 7,215 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 King County International Airport and Shannon 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 King County International Airport and Shannon 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 King County International Airport (BFI):

• Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County 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 August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
• Except for the World War II period, when it was taken over by the U.S.
• Boeing Field as seen from the Air Traffic Control Tower
• King County International Airport (BFI) has 2 runways.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
• Helijet, a helicopter airline based at Vancouver International Airport in British Columbia, scheduled Sikorsky S-76s to the Victoria Harbour Heliport in British Columbia and on to Helijet's Vancouver Harbour Heliport near downtown Vancouver, B.C.
• At one point Aeroamerica scheduled a Boeing 720 to Spokane.
• The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.

Facts about Shannon Airport (SNN):

• The furthest airport from Shannon Airport (SNN) is Ryan's Creek Aerodrome (SZS), which is nearly antipodal to Shannon Airport (meaning Shannon Airport is almost on the exact opposite side of the Earth from Ryan's Creek Aerodrome), and is located 12,015 miles (19,336 kilometers) away in Stewart Island, New Zealand.
• In 1969, it was announced that a new government agency, Aer Rianta, would be given responsibility for Shannon Airport.
• Shannon Airport handled 1,400,032 passengers last year.
• Ryanair increased services and passenger numbers at the airport through 2008.
• The last quarter of 2012 saw a resurgence for Shannon, with new services announced for Philadelphia and Chicago, a return of Aer Lingus to JFK and Boston, and Delta to JFK, giving Shannon direct services to five US airports for 2013.
• When World War II ended, the airport was ready to be used by the many new post-war commercial airlines of Europe and North America.
• In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
• The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
• Shannon Airport (SNN) currently has only 1 runway.
• In 1947, the "Customs Free Airport Act" established Shannon as the world's first duty-free airport.
• Aer Lingus announced on 15 June 2010 that it would be suspending services from Shannon to Boston and New York for 11 weeks from January 2011.
• Because of Shannon Airport's relatively low elevation of 46 feet, planes can take off or land at Shannon 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.