Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Semey, Kazakhstan:
Departure Airport:

Arrival Airport:

Distance from CPS to PLX:
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- About this route
- CPS Airport Information
- PLX Airport Information
- Facts about CPS
- Facts about PLX
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to PLX
- List of Nearest Airports to PLX
- Map of Furthest Airports from PLX
- List of Furthest Airports from PLX
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Semipalatinsk Airport (PLX), Semey, Kazakhstan would travel a Great Circle distance of 6,265 miles (or 10,083 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 Semipalatinsk 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 Semipalatinsk Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | PLX / UASS |
Airport Names: |
|
Location: | Semey, Kazakhstan |
GPS Coordinates: | 50°21'5"N by 80°14'3"E |
Area Served: | Semipalatinsk |
Operator/Owner: | JSC "Semey International Airport" |
Airport Type: | Public |
Elevation: | 761 feet (232 meters) |
# of Runways: | 1 |
View all routes: | Routes from PLX |
More Information: | PLX Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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 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.
Facts about Semipalatinsk Airport (PLX):
- The furthest airport from Semipalatinsk Airport (PLX) is Teniente Julio Gallardo Airfield (PNT), which is located 11,256 miles (18,115 kilometers) away in Puerto Natales, Chile.
- Semipalatinsk Airport (PLX) currently has only 1 runway.
- Because of Semipalatinsk Airport's relatively low elevation of 761 feet, planes can take off or land at Semipalatinsk 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 addition to being known as "Semipalatinsk Airport", another name for PLX is "Semey Airport".
- The closest airport to Semipalatinsk Airport (PLX) is Oskemen Airport (UKK), which is located 102 miles (165 kilometers) ESE of PLX.