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

Arrival Airport:

Distance from DCU to CPS:
Share this route:
Jump to:
- About this route
- DCU Airport Information
- CPS Airport Information
- Facts about DCU
- Facts about CPS
- Map of Nearest Airports to DCU
- List of Nearest Airports to DCU
- Map of Furthest Airports from DCU
- List of Furthest Airports from DCU
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Pryor Field Regional Airport (DCU), Decatur, Alabama, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 324 miles (or 521 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 Pryor Field Regional Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DCU / KDCU |
Airport Name: | Pryor Field Regional Airport |
Location: | Decatur, Alabama, United States |
GPS Coordinates: | 34°39'15"N by 86°56'43"W |
Area Served: | Decatur, Alabama |
Operator/Owner: | Decatur/Athens Airport Authority |
Airport Type: | Public |
Elevation: | 592 feet (180 meters) |
# of Runways: | 1 |
View all routes: | Routes from DCU |
More Information: | DCU Maps & Info |
Arrival 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 |
Facts about Pryor Field Regional Airport (DCU):
- Pryor Field Regional Airport (DCU) currently has only 1 runway.
- The Pryor Field Regional Airport receives $30,000 annually each from the cities of Athens and Decatur and from the county commissions of Morgan and Limestone
- Flying training was performed with Fairchild PT-19s as the primary trainer.
- The furthest airport from Pryor Field Regional Airport (DCU) is Margaret River Airport (MGV), which is located 11,180 miles (17,992 kilometers) away in Margaret River, Western Australia, Australia.
- In 2007, Chris Wright was struck by a propeller as he was "hand propping" starting his plane.
- The closest airport to Pryor Field Regional Airport (DCU) is Huntsville International Airport (HSV), which is located only 10 miles (16 kilometers) E of DCU.
- Because of Pryor Field Regional Airport's relatively low elevation of 592 feet, planes can take off or land at Pryor Field Regional 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 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 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 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.