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

Arrival Airport:

Distance from CPS to RIV:
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- About this route
- CPS Airport Information
- RIV Airport Information
- Facts about CPS
- Facts about RIV
- 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 RIV
- List of Nearest Airports to RIV
- Map of Furthest Airports from RIV
- List of Furthest Airports from RIV
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and March Air Reserve Base (RIV), Riverside, California, United States would travel a Great Circle distance of 1,539 miles (or 2,477 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 March Air Reserve Base, 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: | RIV / KRIV |
Airport Name: | March Air Reserve Base |
Location: | Riverside, California, United States |
GPS Coordinates: | 33°52'50"N by 117°15'33"W |
View all routes: | Routes from RIV |
More Information: | RIV Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
Facts about March Air Reserve Base (RIV):
- The closest airport to March Air Reserve Base (RIV) is Flabob Airport (RIR), which is located only 11 miles (18 kilometers) NW of RIV.
- The furthest airport from March Air Reserve Base (RIV) is Pierrefonds Airport (ZSE), which is located 11,461 miles (18,445 kilometers) away in Saint-Pierre, Réunion.
- The Attack on Pearl Harbor in December 1941 quickly brought March Field back into the business of training aircrews.
- Few members of the 1st Fighter Group foresaw subsequent difficulties in the summer of 1946 as they trained with their new jet fighters.
- The Army quickly set about establishing the new air field.
- Detached from the wing, the 22d Bombardment Group deployed its B-29s in early July 1950 to Kadena AB, Okinawa, where it came under control of FEAF Bomber Command.
- The first flying squadron was the 215th Aero Squadron, which was transferred from Rockwell Field, North Island, California.