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

Arrival Airport:

Distance from CPS to PRO:
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- About this route
- CPS Airport Information
- PRO Airport Information
- Facts about CPS
- Facts about PRO
- 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 PRO
- List of Nearest Airports to PRO
- Map of Furthest Airports from PRO
- List of Furthest Airports from PRO
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Perry Municipal Airport (PRO), Perry, Iowa, United States would travel a Great Circle distance of 309 miles (or 497 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 Perry 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: | PRO / KPRO |
Airport Name: | Perry Municipal Airport |
Location: | Perry, Iowa, United States |
GPS Coordinates: | 41°49'41"N by 94°9'34"W |
Area Served: | Perry, Iowa |
Operator/Owner: | City of Perry |
Airport Type: | Public |
Elevation: | 1013 feet (309 meters) |
# of Runways: | 2 |
View all routes: | Routes from PRO |
More Information: | PRO 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.
- The airport opened in 1929 as Curtiss-Steinberg 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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Perry Municipal Airport (PRO):
- Perry Municipal Airport (PRO) has 2 runways.
- The closest airport to Perry Municipal Airport (PRO) is Boone Municipal Airport (BNW), which is located 22 miles (36 kilometers) NE of PRO.
- The furthest airport from Perry Municipal Airport (PRO) is Margaret River Airport (MGV), which is located 10,760 miles (17,317 kilometers) away in Margaret River, Western Australia, Australia.