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):

• Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the airport.
• 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 (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.
• 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.
• 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.
• The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
• 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.
• 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".

Facts about Singapore Changi Airport (SIN):

• 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 2013, the airport handled 53.1 million passengers, a 5% increase over the previous year.
• The contractor was Penta-Ocean Construction, a Japanese construction firm directly involved in numerous land reclamation projects in Singapore.
• 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.
• 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.
• 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.
• Singapore Changi Airport (SIN) has 3 runways.
• Announced on 19 August 2013 by Changi Airport Group, a new mixed-use complex will be developed on the car park site fronting Terminal 1 and will optimise the use of the 3.5-hectare plot of land.
• 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)".