Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and San Antonio Oeste, Argentina:
Departure Airport:

Arrival Airport:

Distance from CPS to OES:
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- About this route
- CPS Airport Information
- OES Airport Information
- Facts about CPS
- Facts about OES
- 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 OES
- List of Nearest Airports to OES
- Map of Furthest Airports from OES
- List of Furthest Airports from OES
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Antoine de Saint Exupéry Airport (OES), San Antonio Oeste, Argentina would travel a Great Circle distance of 5,705 miles (or 9,182 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 Antoine de Saint Exupéry Airport, 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 Antoine de Saint Exupéry Airport. 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: | OES / SAVN |
Airport Name: | Antoine de Saint Exupéry Airport |
Location: | San Antonio Oeste, Argentina |
GPS Coordinates: | 40°45'5"S by 65°2'3"W |
Area Served: | San Antonio Oeste |
Airport Type: | Public |
Elevation: | 85 feet (26 meters) |
# of Runways: | 1 |
View all routes: | Routes from OES |
More Information: | OES Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.
- 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 Antoine de Saint Exupéry Airport (OES):
- Because of Antoine de Saint Exupéry Airport's relatively low elevation of 85 feet, planes can take off or land at Antoine de Saint Exupéry 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.
- Antoine de Saint Exupéry Airport is an airport serving San Antonio Oeste, Río Negro, Argentina.
- The closest airport to Antoine de Saint Exupéry Airport (OES) is Gobernador Edgardo Castello Airport (VDM), which is located 107 miles (172 kilometers) E of OES.
- Due to a lack of facility, runway and airport maintenance for over 20 years, commercial air services were discontinued to the airport in 2009.
- The furthest airport from Antoine de Saint Exupéry Airport (OES) is Zhangjiakou Ningyuan Airport (ZQZ), which is nearly antipodal to Antoine de Saint Exupéry Airport (meaning Antoine de Saint Exupéry Airport is almost on the exact opposite side of the Earth from Zhangjiakou Ningyuan Airport), and is located 12,435 miles (20,012 kilometers) away in Zhangjiakou, Hebei Province, China.
- Antoine de Saint Exupéry Airport (OES) currently has only 1 runway.