Nonstop flight route between Raleigh / Durham, North Carolina, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from RDU to CPS:
Share this route:
Jump to:
- About this route
- RDU Airport Information
- CPS Airport Information
- Facts about RDU
- Facts about CPS
- Map of Nearest Airports to RDU
- List of Nearest Airports to RDU
- Map of Furthest Airports from RDU
- List of Furthest Airports from RDU
- 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 Raleigh–Durham International Airport (RDU), Raleigh / Durham, North Carolina, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 652 miles (or 1,049 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 Raleigh–Durham International 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: | RDU / KRDU |
Airport Name: | Raleigh–Durham International Airport |
Location: | Raleigh / Durham, North Carolina, United States |
GPS Coordinates: | 35°52'40"N by 78°47'14"W |
Area Served: | The Research Triangle Metropolitan Region of North Carolina |
Airport Type: | Public |
Elevation: | 435 feet (133 meters) |
# of Runways: | 3 |
View all routes: | Routes from RDU |
More Information: | RDU 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 Raleigh–Durham International Airport (RDU):
- Raleigh–Durham International Airport (RDU) has 3 runways.
- The closest airport to Raleigh–Durham International Airport (RDU) is Triangle North Executive Airport (Franklin County Airport) (LFN), which is located 27 miles (44 kilometers) ENE of RDU.
- The airport has implemented the most ambitious expansion in its history, begun in 2006 and completed in January 2011.
- Midway Airlines replaced AA as the airport's hub carrier from 1995 until 2003.
- The region's first airport opened in 1929 as Raleigh's Municipal Airport, just south of what is now downtown.
- The furthest airport from Raleigh–Durham International Airport (RDU) is Margaret River Airport (MGV), which is located 11,639 miles (18,731 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Raleigh–Durham International Airport's relatively low elevation of 435 feet, planes can take off or land at Raleigh–Durham 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.
- Raleigh–Durham International Airport has terminals 1 and 2.
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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 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.