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

Arrival Airport:

Distance from CPS to ILR:
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- About this route
- CPS Airport Information
- ILR Airport Information
- Facts about CPS
- Facts about ILR
- 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 ILR
- List of Nearest Airports to ILR
- Map of Furthest Airports from ILR
- List of Furthest Airports from ILR
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ilorin International Airport (ILR), Ilorin, Nigeria would travel a Great Circle distance of 6,104 miles (or 9,824 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 Ilorin International 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 Ilorin International 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: | ILR / DNIL |
Airport Name: | Ilorin International Airport |
Location: | Ilorin, Nigeria |
GPS Coordinates: | 8°26'26"N by 4°29'39"E |
Area Served: | Ilorin, Nigeria |
Airport Type: | Public |
Elevation: | 1126 feet (343 meters) |
# of Runways: | 1 |
View all routes: | Routes from ILR |
More Information: | ILR 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.
- 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.
- 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.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 airport opened in 1929 as Curtiss-Steinberg Airport.
Facts about Ilorin International Airport (ILR):
- Ilorin International Airport (ILR) currently has only 1 runway.
- The furthest airport from Ilorin International Airport (ILR) is Wallis Island (WLS), which is nearly antipodal to Ilorin International Airport (meaning Ilorin International Airport is almost on the exact opposite side of the Earth from Wallis Island), and is located 12,100 miles (19,473 kilometers) away in Wallis and Futuna Islands.
- The closest airport to Ilorin International Airport (ILR) is Ibadan Airport (IBA), which is located 82 miles (133 kilometers) SSW of ILR.