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

Arrival Airport:

Distance from CPR to CPS:
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- About this route
- CPR Airport Information
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- Facts about CPR
- Facts about CPS
- Map of Nearest Airports to CPR
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- Map of Furthest Airports from CPR
- List of Furthest Airports from CPR
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 903 miles (or 1,453 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 Casper–Natrona County International AirportCasper Army Airfield and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | CPR / KCPR |
Airport Name: | Casper–Natrona County International AirportCasper Army Airfield |
Location: | Casper, Wyoming, United States |
GPS Coordinates: | 42°54'29"N by 106°27'51"W |
Area Served: | Casper, Wyoming |
Operator/Owner: | Airport Board of Trustees |
Airport Type: | Public |
Elevation: | 5350 feet (1,631 meters) |
# of Runways: | 2 |
View all routes: | Routes from CPR |
More Information: | CPR Maps & Info |
Arrival 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 |
Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):
- The closest airport to Casper–Natrona County International AirportCasper Army Airfield (CPR) is Converse County Airport (DGW), which is located 55 miles (89 kilometers) E of CPR.
- Taxi service and car rental agencies are available.
- Casper–Natrona County International AirportCasper Army Airfield (CPR) has 2 runways.
- The 331st was converted to a Very Heavy group in July 1944 and began training for deployment to Twentieth Air Force in the Pacific.
- Since early 2008 the airport has been in talks with the carriers to increase capacity.
- Because of Casper–Natrona County International AirportCasper Army Airfield's high elevation of 5,350 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CPR. Combined with a high temperature, this could make CPR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Casper–Natrona County International AirportCasper Army Airfield (CPR) is Sir Gaëtan Duval Airport (RRG), which is located 10,731 miles (17,270 kilometers) away in Rodrigues Island, Mauritius.
- In the 2011 comedy film Bridesmaids, an airplane makes an emergency landing at the airport to deplane a rowdy flier and her group of friends.
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.
- 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.