Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Changi, Singapore:

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Singapore Changi Airport (SIN), Changi, Singapore would travel a Great Circle distance of 8,064 miles (or 12,979 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 Singapore Changi 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 Singapore Changi 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):

• Seattle–Tacoma International Airport (SEA) has 3 runways.
• The South Satellite Terminal has reached its maximum capacity for handling international passengers in terms of immigration check stands as well as customs declaration.
• 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.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• The airport has a Central Terminal building, which was renovated and expanded in 2003.
• 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.
• 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.
• 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.
• The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
• A new control tower was built beginning in 2001 and opened November 2004, at a cost of $26 million.

Facts about Singapore Changi Airport (SIN):

• 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.
• Singapore Changi Airport (SIN) has 3 runways.
• T4 will also have its own Ramp Control Tower to oversee and manage aircraft movements in the apron and taxiways around the terminal.
• 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.
• 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.
• 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.
• 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.
• 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)".
• Construction of this terminal, Terminal 3, began in 1999, at an estimated cost of about S$1.75 billion.
• In 2006, a short runway ) was opened for Changi Air Base on the site, an interim measure in preparation for its eventual expansion for passenger flights.
• The airport has won over 430 awards since 1981, including 30 'Best' awards in 2012.