Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Xianyang, Shaanxi, China:

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Xi'an Xianyang International Airport (XIY), Xianyang, Shaanxi, China would travel a Great Circle distance of 5,956 miles (or 9,585 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 Xi'an Xianyang 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 Xi'an Xianyang 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):

• The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
• 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.
• 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 airport is also served both by the King County Metro bus system and Sound Transit regional express buses.
• 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.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• A new control tower was built beginning in 2001 and opened November 2004, at a cost of $26 million.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
• 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.

Facts about Xi'an Xianyang International Airport (XIY):

• Xi'an Xianyang International Airport handled 23,420,654 passengers last year.
• The furthest airport from Xi'an Xianyang International Airport (XIY) is La Unión Airport (LUI), which is nearly antipodal to Xi'an Xianyang International Airport (meaning Xi'an Xianyang International Airport is almost on the exact opposite side of the Earth from La Unión Airport), and is located 12,412 miles (19,976 kilometers) away in La Unión, Honduras[disambiguation needed].
• The airport is located within the administrative area of Xianyang city, which gives the airport its name.
• The closest airport to Xi'an Xianyang International Airport (XIY) is Xi'an Xiguan Airport (SIA), which is located 22 miles (35 kilometers) ESE of XIY.
• Xi'an Xianyang International Airport (XIY) has 2 runways.
• In addition to being known as "Xi'an Xianyang International Airport", other names for XIY include "西安咸阳国际机场" and "Xī'ān Xiányáng Guójì Jīchǎng".
• In 2012, the airport handled 23,420,654 passengers, making it the busiest airport in northwest China and the 8th busiest nationwide.
• Terminal 3 and the second runway were opened on 3 May 2012, increasing the airport's capacity to more than 33 million passengers a year.