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

Arrival Airport:

Distance from CPS to SEE:
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- About this route
- CPS Airport Information
- SEE Airport Information
- Facts about CPS
- Facts about SEE
- 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 SEE
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- List of Furthest Airports from SEE
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Gillespie Field (SEE), San Diego / El Cajon, California, United States would travel a Great Circle distance of 1,550 miles (or 2,494 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 Gillespie Field, 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: | SEE / KSEE |
Airport Name: | Gillespie Field |
Location: | San Diego / El Cajon, California, United States |
GPS Coordinates: | 32°49'33"N by 116°58'20"W |
Area Served: | San Diego, California |
Operator/Owner: | County of San Diego |
Airport Type: | Public |
Elevation: | 388 feet (118 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEE |
More Information: | SEE Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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 Gillespie Field (SEE):
- Because of Gillespie Field's relatively low elevation of 388 feet, planes can take off or land at Gillespie Field 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.
- In February 1944, the camp was commissioned as Marine Corps Auxiliary Airfield Gillespie under the command of Marine Corps Air Station El Toro.
- The closest airport to Gillespie Field (SEE) is Montgomery Field (MYF), which is located only 10 miles (16 kilometers) W of SEE.
- Gillespie is the home of the restoration facility Gillespie Field Annex for the San Diego Air and Space Museum.
- In 1942 the United States Marine Corps chose a 688-acre site east of San Diego for parachute training for the newly forming Parachute battalions.
- The furthest airport from Gillespie Field (SEE) is Sir Gaëtan Duval Airport (RRG), which is located 11,534 miles (18,562 kilometers) away in Rodrigues Island, Mauritius.
- Gillespie Field (SEE) has 3 runways.