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

Arrival Airport:

Distance from CPS to CLD:
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- About this route
- CPS Airport Information
- CLD Airport Information
- Facts about CPS
- Facts about CLD
- 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 CLD
- List of Nearest Airports to CLD
- Map of Furthest Airports from CLD
- List of Furthest Airports from CLD
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and McClellan–Palomar Airport (CLD), Carlsbad, California, United States would travel a Great Circle distance of 1,559 miles (or 2,508 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 McClellan–Palomar 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: | CLD / KCRQ |
Airport Names: |
|
Location: | Carlsbad, California, United States |
GPS Coordinates: | 33°7'41"N by 117°16'48"W |
Area Served: | North San Diego County |
Operator/Owner: | County of San Diego |
Airport Type: | Public |
Elevation: | 331 feet (101 meters) |
# of Runways: | 1 |
View all routes: | Routes from CLD |
More Information: | CLD Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- 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 McClellan–Palomar Airport (CLD):
- It opened a $24 million airline terminal on January 29, 2009.
- Previous airline service to the airport includes American Eagle to Los Angeles and America West Express to Phoenix.
- Because of McClellan–Palomar Airport's relatively low elevation of 331 feet, planes can take off or land at McClellan–Palomar 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.
- McClellan–Palomar Airport (CLD) currently has only 1 runway.
- In addition to being known as "McClellan–Palomar Airport", another name for CLD is "CRQ".
- The furthest airport from McClellan–Palomar Airport (CLD) is Sir Gaëtan Duval Airport (RRG), which is located 11,512 miles (18,527 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to McClellan–Palomar Airport (CLD) is Bob Maxwell Field (Oceanside Municipal Airport) (OCN), which is located only 7 miles (12 kilometers) NNW of CLD.