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

Arrival Airport:

Distance from RKR to CPS:
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- About this route
- RKR Airport Information
- CPS Airport Information
- Facts about RKR
- Facts about CPS
- Map of Nearest Airports to RKR
- List of Nearest Airports to RKR
- Map of Furthest Airports from RKR
- List of Furthest Airports from RKR
- 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 Robert S. Kerr Airport (RKR), Poteau, Oklahoma, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 348 miles (or 560 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 Robert S. Kerr 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: | RKR / KRKR |
Airport Name: | Robert S. Kerr Airport |
Location: | Poteau, Oklahoma, United States |
GPS Coordinates: | 35°1'18"N by 94°37'15"W |
Area Served: | Poteau, Oklahoma |
Operator/Owner: | City of Poteau |
Airport Type: | Public |
Elevation: | 450 feet (137 meters) |
# of Runways: | 1 |
View all routes: | Routes from RKR |
More Information: | RKR 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 Robert S. Kerr Airport (RKR):
- Because of Robert S. Kerr Airport's relatively low elevation of 450 feet, planes can take off or land at Robert S. Kerr 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.
- Robert S. Kerr Airport (RKR) currently has only 1 runway.
- The closest airport to Robert S. Kerr Airport (RKR) is Fort Smith Regional Airport (FSM), which is located 26 miles (42 kilometers) NNE of RKR.
- The furthest airport from Robert S. Kerr Airport (RKR) is Margaret River Airport (MGV), which is located 10,749 miles (17,298 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.