Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and San Juan, Puerto Rico:
Departure Airport:

Arrival Airport:

Distance from CPS to SJU:
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- About this route
- CPS Airport Information
- SJU Airport Information
- Facts about CPS
- Facts about SJU
- 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 SJU
- List of Nearest Airports to SJU
- Map of Furthest Airports from SJU
- List of Furthest Airports from SJU
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Luis Muñoz Marín International Airport (SJU), San Juan, Puerto Rico would travel a Great Circle distance of 2,009 miles (or 3,233 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 Luis Muñoz Marín International 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: | SJU / TJSJ |
Airport Names: |
|
Location: | San Juan, Puerto Rico |
GPS Coordinates: | 18°26'21"N by 66°0'6"W |
Area Served: | San Juan, Puerto Rico |
Operator/Owner: | Puerto Rico Ports Authority |
Airport Type: | Public |
Elevation: | 9 feet (3 meters) |
# of Runways: | 2 |
View all routes: | Routes from SJU |
More Information: | SJU 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 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 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.
Facts about Luis Muñoz Marín International Airport (SJU):
- The airport serves as the Caribbean hub for Cape Air, Air Sunshine, and Seaborne Airlines, as well as a focus city for JetBlue Airways.
- The closest airport to Luis Muñoz Marín International Airport (SJU) is Fernando Luis Ribas Dominicci Airport (SIG), which is located only 6 miles (10 kilometers) W of SJU.
- Luis Muñoz Marín International Airport (SJU) has 2 runways.
- Until 1955, the Fernando Luis Ribas Dominicci Airport was the main international airport of Puerto Rico.
- The furthest airport from Luis Muñoz Marín International Airport (SJU) is Barrow Island Airport (BWB), which is nearly antipodal to Luis Muñoz Marín International Airport (meaning Luis Muñoz Marín International Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,246 miles (19,708 kilometers) away in Barrow Island, Western Australia, Australia.
- In addition to being known as "Luis Muñoz Marín International Airport", another name for SJU is "Aeropuerto Internacional Luis Muñoz Marín".
- Because of Luis Muñoz Marín International Airport's relatively low elevation of 9 feet, planes can take off or land at Luis Muñoz Marín International 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.