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

Arrival Airport:

Distance from SDM to CPS:
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- About this route
- SDM Airport Information
- CPS Airport Information
- Facts about SDM
- Facts about CPS
- Map of Nearest Airports to SDM
- List of Nearest Airports to SDM
- Map of Furthest Airports from SDM
- List of Furthest Airports from SDM
- 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 Brown Field Municipal Airport (SDM), San Diego, California, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,557 miles (or 2,506 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 Brown Field Municipal 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: | SDM / KSDM |
Airport Name: | Brown Field Municipal Airport |
Location: | San Diego, California, United States |
GPS Coordinates: | 32°34'19"N by 116°58'49"W |
Area Served: | San Diego, California |
Operator/Owner: | City of San Diego |
Airport Type: | Public |
Elevation: | 526 feet (160 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDM |
More Information: | SDM 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 Brown Field Municipal Airport (SDM):
- The furthest airport from Brown Field Municipal Airport (SDM) is Sir Gaëtan Duval Airport (RRG), which is located 11,551 miles (18,590 kilometers) away in Rodrigues Island, Mauritius.
- Brown Field Municipal Airport (SDM) has 2 runways.
- Because of Brown Field Municipal Airport's relatively low elevation of 526 feet, planes can take off or land at Brown Field 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.
- The closest airport to Brown Field Municipal Airport (SDM) is Tijuana International Airport (TIJ), which is located only 2 miles (4 kilometers) SSE of SDM.
- In 1946 the Navy decommissioned Brown Field and turned it over to San Diego County.
- A precision approach is not possible to either runway end due to rising terrain less than six miles east of the airport.
- Brown Field Municipal Airport is in the Otay Mesa neighborhood of San Diego, California, 13 miles southeast of Downtown San Diego and named in honor of Commander Melville S.
Facts about St. Louis Downtown Airport (CPS):
- 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.