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

Arrival Airport:

Distance from CPS to REL:
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- About this route
- CPS Airport Information
- REL Airport Information
- Facts about CPS
- Facts about REL
- 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 REL
- List of Nearest Airports to REL
- Map of Furthest Airports from REL
- List of Furthest Airports from REL
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Almirante Marcos A. Zar Airport (REL), Trelew, Chubut, Argentina would travel a Great Circle distance of 5,861 miles (or 9,433 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 Almirante Marcos A. Zar 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 Almirante Marcos A. Zar 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: | REL / SAVT |
Airport Names: |
|
Location: | Trelew, Chubut, Argentina |
GPS Coordinates: | 43°12'35"S by 65°17'1"W |
Area Served: | Trelew, Rawson |
Operator/Owner: | Government and London Supply |
Airport Type: | Public / Militar |
Elevation: | 141 feet (43 meters) |
# of Runways: | 1 |
View all routes: | Routes from REL |
More Information: | REL 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.
- 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- 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.
Facts about Almirante Marcos A. Zar Airport (REL):
- Almirante Marcos A. Zar Airport (REL) currently has only 1 runway.
- It is operated by London Supply.
- This airport is 7 km from Trelew and 26 km from Rawson.
- The closest airport to Almirante Marcos A. Zar Airport (REL) is El Tehuelche Airport (PMY), which is located 33 miles (52 kilometers) NNE of REL.
- In addition to being known as "Almirante Marcos A. Zar Airport", another name for REL is "Aeropuerto de Trelew - Almirante Marcos A. Zar Maes Awyr Almirante Marcos A. Zar".
- It also home of the Argentine Naval Aviation squadron of P-3 Orions.
- The furthest airport from Almirante Marcos A. Zar Airport (REL) is Xilinhot Airport (XIL), which is nearly antipodal to Almirante Marcos A. Zar Airport (meaning Almirante Marcos A. Zar Airport is almost on the exact opposite side of the Earth from Xilinhot Airport), and is located 12,358 miles (19,887 kilometers) away in Xilinhot, Inner Mongolia, China.
- Because of Almirante Marcos A. Zar Airport's relatively low elevation of 141 feet, planes can take off or land at Almirante Marcos A. Zar 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.