Nonstop flight route between Xining, Qinghai, China and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from XNN to CPS:
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- About this route
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- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Xining Caojiabao Airport (XNN), Xining, Qinghai, China and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 7,190 miles (or 11,571 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 Xining Caojiabao Airport and St. Louis Downtown 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 Xining Caojiabao Airport and St. Louis Downtown Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | XNN / ZLXN |
Airport Names: |
|
Location: | Xining, Qinghai, China |
GPS Coordinates: | 36°31'39"N by 102°2'34"E |
Area Served: | Xining and Haidong, Qinghai, China |
Operator/Owner: | China West Airport Group |
Elevation: | 7119 feet (2,170 meters) |
# of Runways: | 1 |
View all routes: | Routes from XNN |
More Information: | XNN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Xining Caojiabao Airport (XNN):
- Xining Caojiabao Airport handled 2,030,378 passengers last year.
- The furthest airport from Xining Caojiabao Airport (XNN) is Carriel Sur International Airport (CCP), which is nearly antipodal to Xining Caojiabao Airport (meaning Xining Caojiabao Airport is almost on the exact opposite side of the Earth from Carriel Sur International Airport), and is located 12,165 miles (19,578 kilometers) away in Concepción, Bío Bío Region, Chile.
- The closest airport to Xining Caojiabao Airport (XNN) is Lanzhou Zhongchuan Airport (LHW), which is located 88 miles (141 kilometers) E of XNN.
- Because of Xining Caojiabao Airport's high elevation of 7,119 feet, planes must typically fly at a faster airspeed in order to takeoff or land at XNN. Combined with a high temperature, this could make XNN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- In addition to being known as "Xining Caojiabao Airport", other names for XNN include "西宁曹家堡机场" and "Xīníng Cáojiābǎo Jīchǎng".
- Xining Caojiabao Airport (XNN) currently has only 1 runway.
Facts about St. Louis Downtown Airport (CPS):
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.