Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Pierre, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to PIR:
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- About this route
- CPS Airport Information
- PIR Airport Information
- Facts about CPS
- Facts about PIR
- 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 PIR
- List of Nearest Airports to PIR
- Map of Furthest Airports from PIR
- List of Furthest Airports from PIR
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Pierre Regional Airport (PIR), Pierre, South Dakota, United States would travel a Great Circle distance of 660 miles (or 1,062 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 Pierre Regional Airport, 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: | PIR / KPIR |
Airport Names: |
|
Location: | Pierre, South Dakota, United States |
GPS Coordinates: | 44°22'58"N by 100°17'9"W |
Area Served: | Pierre, South Dakota |
Operator/Owner: | City of Pierre |
Airport Type: | Public |
Elevation: | 1744 feet (532 meters) |
# of Runways: | 2 |
View all routes: | Routes from PIR |
More Information: | PIR Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
Facts about Pierre Regional Airport (PIR):
- Pierre Regional Airport (PIR) has 2 runways.
- Pierre Regional Airport is a city owned, public airport three miles east of Pierre, in Hughes County, South Dakota.
- The furthest airport from Pierre Regional Airport (PIR) is Sir Gaëtan Duval Airport (RRG), which is located 10,493 miles (16,887 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "Pierre Regional Airport", another name for PIR is "Pierre Army Airfield".
- The closest airport to Pierre Regional Airport (PIR) is Mobridge Municipal Airport (MBG), which is located 81 miles (130 kilometers) N of PIR.
- During World War II the airfield was used by the United States Army Air Forces by Air Technical Service Command as a maintenance and supply depot.