Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Redstone Arsenal (near Huntsville), Alabama, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to HUA:
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- About this route
- CPS Airport Information
- HUA Airport Information
- Facts about CPS
- Facts about HUA
- 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 HUA
- List of Nearest Airports to HUA
- Map of Furthest Airports from HUA
- List of Furthest Airports from HUA
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Redstone Army Airfield (AAF) (HUA), Redstone Arsenal (near Huntsville), Alabama, United States would travel a Great Circle distance of 331 miles (or 532 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 Redstone Army Airfield (AAF), 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: | HUA / KHUA |
Airport Name: | Redstone Army Airfield (AAF) |
Location: | Redstone Arsenal (near Huntsville), Alabama, United States |
GPS Coordinates: | 34°40'42"N by 86°41'4"W |
Area Served: | Redstone Arsenal |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 685 feet (209 meters) |
# of Runways: | 1 |
View all routes: | Routes from HUA |
More Information: | HUA Maps & Info |
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.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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 Redstone Army Airfield (AAF) (HUA):
- The closest airport to Redstone Army Airfield (AAF) (HUA) is Huntsville International Airport (HSV), which is located only 6 miles (9 kilometers) WSW of HUA.
- Because of Redstone Army Airfield (AAF)'s relatively low elevation of 685 feet, planes can take off or land at Redstone Army Airfield (AAF) 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.
- On April 12, 1956, the city of Huntsville approached the commander of the airfield to talk about a new federal airway.
- Redstone Army Airfield (AAF) (HUA) currently has only 1 runway.
- The furthest airport from Redstone Army Airfield (AAF) (HUA) is Margaret River Airport (MGV), which is located 11,195 miles (18,016 kilometers) away in Margaret River, Western Australia, Australia.