Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Kolonia, Federated States of Micronesia:
Departure Airport:

Arrival Airport:

Distance from CPS to PNI:
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- About this route
- CPS Airport Information
- PNI Airport Information
- Facts about CPS
- Facts about PNI
- 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 PNI
- List of Nearest Airports to PNI
- Map of Furthest Airports from PNI
- List of Furthest Airports from PNI
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Pohnpei International Airport (PNI), Kolonia, Federated States of Micronesia would travel a Great Circle distance of 7,057 miles (or 11,357 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 Pohnpei 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 Pohnpei International 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: | PNI / PTPN |
Airport Name: | Pohnpei International Airport |
Location: | Kolonia, Federated States of Micronesia |
GPS Coordinates: | 6°59'6"N by 158°12'32"E |
Area Served: | Pohnpei |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from PNI |
More Information: | PNI Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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 Pohnpei International Airport (PNI):
- Pohnpei International Airport (PNI) currently has only 1 runway.
- The furthest airport from Pohnpei International Airport (PNI) is RAF Ascension (ASI), which is located 11,926 miles (19,192 kilometers) away in Georgetown, Ascension Island, Saint Helena.
- The closest airport to Pohnpei International Airport (PNI) is Kosrae International Airport (KSA), which is located 345 miles (555 kilometers) ESE of PNI.
- In addition to passenger services, Asia Pacific Airlines transports cargo to and from Pohnpei.
- Because of Pohnpei International Airport's relatively low elevation of 10 feet, planes can take off or land at Pohnpei 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.