Nonstop flight route between Changi, Singapore and Seattle, Washington, United States:

About this route:

A direct, nonstop flight between Singapore Changi Airport (SIN), Changi, Singapore and King County International Airport (BFI), Seattle, Washington, United States would travel a Great Circle distance of 8,061 miles (or 12,974 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 Singapore Changi Airport and King County 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 Singapore Changi Airport and King County 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 Singapore Changi Airport (SIN):

• Singapore Changi Airport (SIN) has 3 runways.
• Construction of this terminal, Terminal 3, began in 1999, at an estimated cost of about S$1.75 billion.
• After Singaporean authorities decided to build a new airport, Singaporean government dispatched an inspection team to Taiwan in 1979, watching and learning the design of newly built Chiang Kai-shek International Airport.
• The furthest airport from Singapore Changi Airport (SIN) is Francisco de Orellana Airport (OCC), which is nearly antipodal to Singapore Changi Airport (meaning Singapore Changi Airport is almost on the exact opposite side of the Earth from Francisco de Orellana Airport), and is located 12,345 miles (19,868 kilometers) away in Coca, Ecuador.
• Changi Airport currently has three terminals, T1, T2, and T3, with a total annual handling capacity of 66 million.
• Because of Singapore Changi Airport's relatively low elevation of 22 feet, planes can take off or land at Singapore Changi 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.
• To prepare for the arrival of the Airbus A380, the airport put into place modifications works costing S$60 million, which it has planned for since the late 1990s.
• The closest airport to Singapore Changi Airport (SIN) is Paya Lebar Air Base (PLAB) (QPG), which is located only 6 miles (9 kilometers) W of SIN.
• On 7 March 2012, Minister of State for Transport Josephine Teo announced in Parliament that a new multi-storey complex at the current Terminal 1 carpark will be built.
• Changing needs in the aviation industry led to reviews in the master plan, resulting in the decision to cater to the high-end as well as budget sectors of the air travel industry.
• Minister of State for Transport Josephine Teo, who leads a 10-member Multi-agency committee that has been working on the blueprint which includes the construction of Terminal 5 – the airport's biggest passenger facility – a third runway for commercial flights, cargo complexes and other supporting infrastructure for around 18 months.
• In addition to being known as "Singapore Changi Airport", other names for SIN include "Lapangan Terbang Antarabangsa Changi Singapura", "新加坡樟宜机场(Xīnjiāpō Zhāngyí Jīchǎng)" and "சிங்கப்பூர் சாங்கி விமானநிலையம் (Ciṅkappūr Cāṅki Vimana Nilaiyam)".
• Even as new terminals are being built, the airport continuously upgrades and expands its existing terminals.

Facts about King County International Airport (BFI):

• 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.
• The transfer of ownership of Boeing Field from King County to the Port of Seattle was proposed in 2007 as part of a land swap with land owned by the Port.
• It is in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.Federal Aviation Administration records say the airport had 34,597 passenger boardings in calendar year 2008, 35,863 in 2009 and 33,656 in 2010.
• 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.
• King County International Airport (BFI) has 2 runways.
• The Museum of Flight is on the southwest corner of the 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.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".