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

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Changzhou Benniu Airport (CZX), Changzhou, Jiangsu, China would travel a Great Circle distance of 5,740 miles (or 9,237 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 Changzhou Benniu 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 Changzhou Benniu 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 Seattle–Tacoma International Airport, also known as Sea–Tac Airport or Sea–Tac /ˈsiːtæk/, is an American airport.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• 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.
• 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.
• Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
• 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 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.
• The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• 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 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.
• There is also a scheduled bus service to downtown Vancouver, Canada, through Quick Shuttle, with other pick-up stops at downtown Seattle, Bellingham International Airport, and drop-off stops just inside the Canadian–U.S.

Facts about Changzhou Benniu Airport (CZX):

• In addition to being known as "Changzhou Benniu Airport", other names for CZX include "常州奔牛机场" and "Chángzhōu Bēnniú Jīchǎng".
• The closest airport to Changzhou Benniu Airport (CZX) is Yangzhou Taizhou Airport (YTY), which is located 46 miles (74 kilometers) N of CZX.
• The furthest airport from Changzhou Benniu Airport (CZX) is General Justo José de Urquiza Airport (PRA), which is nearly antipodal to Changzhou Benniu Airport (meaning Changzhou Benniu Airport is almost on the exact opposite side of the Earth from General Justo José de Urquiza Airport), and is located 12,420 miles (19,988 kilometers) away in Paraná, Entre Ríos, Argentina.
• Changzhou Benniu Airport (CZX) currently has only 1 runway.