Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Basankusu, Democratic Republic of the Congo:
Departure Airport:

Arrival Airport:

Distance from CPS to BSU:
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- About this route
- CPS Airport Information
- BSU Airport Information
- Facts about CPS
- Facts about BSU
- 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 BSU
- List of Nearest Airports to BSU
- Map of Furthest Airports from BSU
- List of Furthest Airports from BSU
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Basankusu Airport (BSU), Basankusu, Democratic Republic of the Congo would travel a Great Circle distance of 7,232 miles (or 11,639 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 Basankusu 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 Basankusu 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: | BSU / FZEN |
Airport Name: | Basankusu Airport |
Location: | Basankusu, Democratic Republic of the Congo |
GPS Coordinates: | 1°13'28"N by 19°47'20"E |
Airport Type: | Public |
Elevation: | 1217 feet (371 meters) |
View all routes: | Routes from BSU |
More Information: | BSU Maps & Info |
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.
- 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.
- 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.
Facts about Basankusu Airport (BSU):
- The closest airport to Basankusu Airport (BSU) is Impfondo Airport (ION), which is located 123 miles (198 kilometers) WNW of BSU.
- The furthest airport from Basankusu Airport (BSU) is Cassidy International Airport (CXI), which is nearly antipodal to Basankusu Airport (meaning Basankusu Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,140 miles (19,537 kilometers) away in Christmas Island, Kiribati.