Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Riverside, California, United States:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(33°57'6"N by 117°26'41"W)
Distance from CPS to RAL:
1,547.40 miles (2,490.29 km)
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Jump to:
- About this route
- CPS Airport Information
- RAL Airport Information
- Facts about CPS
- Facts about RAL
- 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 RAL
- List of Nearest Airports to RAL
- Map of Furthest Airports from RAL
- List of Furthest Airports from RAL
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Riverside Municipal Airport (RAL), Riverside, California, United States would travel a Great Circle distance of 1,547 miles (or 2,490 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 Riverside 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: | RAL / KRAL |
| Airport Name: | Riverside Municipal Airport |
| Location: | Riverside, California, United States |
| GPS Coordinates: | 33°57'6"N by 117°26'41"W |
| Operator/Owner: | City of Riverside |
| Airport Type: | Public |
| Elevation: | 818 feet (249 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RAL |
| More Information: | RAL Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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.
- 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.
Facts about Riverside Municipal Airport (RAL):
- The closest airport to Riverside Municipal Airport (RAL) is Flabob Airport (RIR), which is located only 3 miles (5 kilometers) NE of RAL.
- Riverside Municipal Airport has been home to Civil Air Patrol Squadron 5 since 2005.
- Riverside Municipal Airport (RAL) has 2 runways.
- The furthest airport from Riverside Municipal Airport (RAL) is Pierrefonds Airport (ZSE), which is located 11,462 miles (18,446 kilometers) away in Saint-Pierre, Réunion.
- Because of Riverside Municipal Airport's relatively low elevation of 818 feet, planes can take off or land at Riverside Municipal 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 3.25 miles (5.22 km) NE | Flabob Airport (RIR) | Riverside/Rubidoux, California, United States | |
| 2 | 11.10 miles (17.86 km) W | Chino Airport (CNO) | Chino, California, United States | |
| 3 | 11.48 miles (18.47 km) NW | LA/Ontario International Airport (ONT) | Ontario (near Los Angeles), California, United States | |
| 4 | 11.73 miles (18.87 km) ESE | March Air Reserve Base (RIV) | Riverside, California, United States | |
| 5 | 15.58 miles (25.07 km) NE | San Bernardino International Airport (SBT) | San Bernardino, California, United States | |
| 6 | 15.58 miles (25.07 km) NE | Norton Air Force Base (SBD) | San Bernardino, California, United States | |
| 7 | 17.74 miles (28.55 km) NW | Cable Airport (CCB) | Upland, California, United States | |
| 8 | 21.57 miles (34.71 km) WNW | Brackett Field (POC) | La Verne, California, United States | |
| 9 | 25.16 miles (40.49 km) SW | MCAS El Toro (NZJ) | Santa Ana, California, United States | |
| 10 | 28.55 miles (45.94 km) ESE | Hemet-Ryan AirportRyan Field (HMT) | Hemet, California, United States | |
| 11 | 30.91 miles (49.74 km) SW | John Wayne Airport (SNA) | Santa Ana, California, United States | |
| 12 | 31.16 miles (50.14 km) W | Fullerton Municipal Airport (FUL) | Fullerton, California, United States | |
| 13 | 34.14 miles (54.94 km) E | Banning Municipal Airport (BNG) | Banning, California, United States | |
| 14 | 35.02 miles (56.36 km) WNW | San Gabriel Valley (El Monte) Airport (EMT) | El Monte, California, United States | |
| 15 | 41.58 miles (66.92 km) WSW | Long Beach Airport (JLB) | Long Beach, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,461.85 miles (18,446.01 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 2 | 11,456.10 miles (18,436.77 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 11,454.81 miles (18,434.69 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 4 | 11,437.13 miles (18,406.24 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 11,316.72 miles (18,212.46 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 11,201.69 miles (18,027.32 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 11,190.17 miles (18,008.79 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 11,159.28 miles (17,959.07 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,073.69 miles (17,821.34 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 11,037.69 miles (17,763.40 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 11 | 11,029.88 miles (17,750.82 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 12 | 11,028.27 miles (17,748.24 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 11,008.33 miles (17,716.14 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,997.81 miles (17,699.21 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,991.15 miles (17,688.49 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |