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

Arrival Airport:

Distance from CPS to SAN:
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- About this route
- CPS Airport Information
- SAN Airport Information
- Facts about CPS
- Facts about SAN
- 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 SAN
- List of Nearest Airports to SAN
- Map of Furthest Airports from SAN
- List of Furthest Airports from SAN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and San Diego International Airport (SAN), San Diego, California, United States would travel a Great Circle distance of 1,564 miles (or 2,517 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 San Diego International 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: | SAN / KSAN |
Airport Names: |
|
Location: | San Diego, California, United States |
GPS Coordinates: | 32°44'0"N by 117°11'22"W |
Area Served: | Greater San Diego |
Airport Type: | Public |
Elevation: | 17 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from SAN |
More Information: | SAN Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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 closed in 1959 and reopened six years later as Bi-State Parks 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 San Diego International Airport (SAN):
- Built and operated by the City of San Diego through the sale of municipal bonds to be repaid by airport users, then the San Diego Unified Port District, the airport is now operated by the San Diego County Regional Airport Authority.
- In addition to being known as "San Diego International Airport", another name for SAN is "Lindbergh Field".
- The airport was the first federally certified airfield to serve all aircraft types, including seaplanes.
- The airport is near the site of the Ryan Airlines factory, but it is not the same as Dutch Flats, the Ryan airstrip where Charles Lindbergh flight tested the Spirit of St.
- The closest airport to San Diego International Airport (SAN) is NAS North Island (NZY), which is located only 3 miles (5 kilometers) SSW of SAN.
- Because of San Diego International Airport's relatively low elevation of 17 feet, planes can take off or land at San Diego 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.
- The airport has domestic flights, as well as international flights to Canada, the United Kingdom, Mexico, and Japan.
- San Diego International Airport (SAN) currently has only 1 runway.
- In May 2008, California Attorney General Jerry Brown announced an agreement with San Diego International Airport on reducing greenhouse gas emissions associated with the airport's proposed master plan improvements.
- Terrain east and west of the airport greatly impacts the available runway length.
- The furthest airport from San Diego International Airport (SAN) is Sir Gaëtan Duval Airport (RRG), which is located 11,540 miles (18,571 kilometers) away in Rodrigues Island, Mauritius.