Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Sanya, Hainan, China:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Sanya Phoenix International Airport (SYX), Sanya, Hainan, China would travel a Great Circle distance of 8,308 miles (or 13,370 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 St. Louis Downtown Airport and Sanya Phoenix 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 St. Louis Downtown Airport and Sanya Phoenix 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 St. Louis Downtown Airport (CPS):

• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.

Facts about Sanya Phoenix International Airport (SYX):

• Sanya Phoenix International Airport (SYX) currently has only 1 runway.
• Sanya Phoenix International Airport is an airport serving the city of Sanya in Hainan, the southernmost province of China.
• Sanya Phoenix Airport Railway Station of the Hainan Western Ring High-Speed Railway, which is planned to be opened by the end of 2014, will be located just north of the airport.
• In addition to being known as "Sanya Phoenix International Airport", other names for SYX include "三亚凤凰国际机场" and "Sānyà Fènghuáng Guójì Jīcháng".
• The closest airport to Sanya Phoenix International Airport (SYX) is Haikou Meilan International Airport (HAK), which is located 132 miles (212 kilometers) NNE of SYX.
• The furthest airport from Sanya Phoenix International Airport (SYX) is Chacalluta International Airport (ARI), which is nearly antipodal to Sanya Phoenix International Airport (meaning Sanya Phoenix International Airport is almost on the exact opposite side of the Earth from Chacalluta International Airport), and is located 12,420 miles (19,988 kilometers) away in Arica, Chile.