Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Big Mountain, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to BMX:
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- About this route
- CPS Airport Information
- BMX Airport Information
- Facts about CPS
- Facts about BMX
- 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 BMX
- List of Nearest Airports to BMX
- Map of Furthest Airports from BMX
- List of Furthest Airports from BMX
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Big Mountain Air Force Station (BMX), Big Mountain, Alaska, United States would travel a Great Circle distance of 3,126 miles (or 5,030 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 large distance between St. Louis Downtown Airport and Big Mountain Air Force Station, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Louis Downtown Airport and Big Mountain Air Force Station. You'll see that it will travel the same route of the red line on this map!
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: | BMX / PABM |
Airport Names: |
|
Location: | Big Mountain, Alaska, United States |
GPS Coordinates: | 59°21'39"N by 155°15'32"W |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military |
Elevation: | 663 feet (202 meters) |
# of Runways: | 1 |
View all routes: | Routes from BMX |
More Information: | BMX Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.
- 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.
Facts about Big Mountain Air Force Station (BMX):
- Because of Big Mountain Air Force Station's relatively low elevation of 663 feet, planes can take off or land at Big Mountain Air Force Station 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.
- Big Mountain Air Force Station (BMX) currently has only 1 runway.
- In addition to being known as "Big Mountain Air Force Station", another name for BMX is "37AK".
- The furthest airport from Big Mountain Air Force Station (BMX) is Port Elizabeth International Airport (PLZ), which is located 10,683 miles (17,193 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Big Mountain Air Force Station (BMX) is Kokhanok Airport (KNK), which is located only 17 miles (27 kilometers) ENE of BMX.