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

Arrival Airport:

Distance from CPS to AAP:
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- About this route
- CPS Airport Information
- AAP Airport Information
- Facts about CPS
- Facts about AAP
- 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 AAP
- List of Nearest Airports to AAP
- Map of Furthest Airports from AAP
- List of Furthest Airports from AAP
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Andrau Airpark (AAP), Houston, Texas, United States would travel a Great Circle distance of 686 miles (or 1,103 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 Andrau Airpark, 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: | AAP / KAAP |
Airport Name: | Andrau Airpark |
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°43'0"N by 95°34'59"W |
Area Served: | Houston, Texas |
Operator/Owner: | Closed |
Airport Type: | General Aviation |
Elevation: | 80 feet (24 meters) |
# of Runways: | 2 |
View all routes: | Routes from AAP |
More Information: | AAP Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
Facts about Andrau Airpark (AAP):
- The airport was closed on December 23, 1998 when a Houston real estate firm paid Andrau Airpark Inc., the airport's owners, 53 million dollars for the land.
- The closest airport to Andrau Airpark (AAP) is Sugar Land Regional Airport (SGR), which is located only 8 miles (13 kilometers) SW of AAP.
- Andrau Airpark (AAP) has 2 runways.
- The airport served general aviation for west Houston, but a Douglas DC-3 and an A-26C Invader are known to have landed there.
- The furthest airport from Andrau Airpark (AAP) is Cocos (Keeling) Island Airport (CCK), which is located 10,987 miles (17,682 kilometers) away in Cocos Islands, Australia.
- Because of Andrau Airpark's relatively low elevation of 80 feet, planes can take off or land at Andrau Airpark 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.
- Andrau Airpark was a public use airport located in the Alief community of Houston, Texas, United States, formerly an unincorporated section of Harris County, from the late 1940s through 1998.