Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Prairie du Chien, Wisconsin, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to PCD:
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- About this route
- CPS Airport Information
- PCD Airport Information
- Facts about CPS
- Facts about PCD
- 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 PCD
- List of Nearest Airports to PCD
- Map of Furthest Airports from PCD
- List of Furthest Airports from PCD
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Prairie du Chien Municipal Airport (PCD), Prairie du Chien, Wisconsin, United States would travel a Great Circle distance of 311 miles (or 501 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 relatively short distance between St. Louis Downtown Airport and Prairie du Chien Municipal Airport, the route shown on this map most likely still appears to be a straight line.
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: | PCD / KPDC |
Airport Names: |
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Location: | Prairie du Chien, Wisconsin, United States |
GPS Coordinates: | 43°1'9"N by 91°7'24"W |
Area Served: | Prairie du Chien, Wisconsin |
Airport Type: | Public |
Elevation: | 661 feet (201 meters) |
# of Runways: | 2 |
View all routes: | Routes from PCD |
More Information: | PCD Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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 airport opened in 1929 as Curtiss-Steinberg Airport.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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.
Facts about Prairie du Chien Municipal Airport (PCD):
- Because of Prairie du Chien Municipal Airport's relatively low elevation of 661 feet, planes can take off or land at Prairie du Chien Municipal 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 Prairie du Chien Municipal Airport (PCD) is Margaret River Airport (MGV), which is located 10,894 miles (17,532 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Prairie du Chien Municipal Airport (PCD) is Decorah Municipal Airport (DEH), which is located 36 miles (58 kilometers) WNW of PCD.
- Prairie du Chien Municipal Airport (PCD) has 2 runways.
- In addition to being known as "Prairie du Chien Municipal Airport", another name for PCD is "PDC".