St Louis Downtown Airport (CPS)

St. Louis Downtown Airport (CPS/KCPS) is a premier public-use aviation facility located in Cahokia, Illinois, serving the St. Louis metropolitan area. Strategically positioned just minutes from the Gateway Arch and the St. Louis city center, it is the busiest general aviation airport in the region and one of the most significant in Illinois. The airport plays a vital role in supporting corporate travel, private aviation, and flight training, being the home base for the Saint Louis University Parks College of Engineering, Aviation and Technology.

The terminal building is a modern and professional facility that serves as the center for airport administration and passenger services. Inside, visitors will find a welcoming lobby area, multiple pilot's lounges with comfortable seating, and clean restroom facilities. Although the airport does not currently support scheduled commercial airline service, the terminal is designed to handle the needs of transient aviators and corporate personnel with high efficiency. Amenities at CPS include high-speed Wi-Fi throughout the building and a popular on-site restaurant, the Jetway Cafe, which offers a variety of dining options with views of the airfield and the St. Louis skyline.

Operational capacity at St. Louis Downtown Airport is supported by three primary paved runways, with the longest (12R/30L) measuring approximately 7,002 feet in length, which is capable of handling a wide range of regional aircraft and large corporate jets. The airport also boasts world-class support services provided by multiple Fixed-Base Operators (FBOs), including major facilities for Gulfstream Aerospace and Jet Aviation. Navigation through the terminal is exceptionally easy due to its compact and logical layout. For ground transportation, the airport is located within a very short drive of downtown St. Louis, with taxi services and private vehicle transfers readily available to transport visitors to their local destinations or hotels.