CPS
St Louis Downtown Airport
St Louis Downtown Airport (IATA: CPS, ICAO: KCPS) is a small airport in Cahokia/St Louis, Illinois, United States. It opened in Apr 1940. It has 3 runways; the longest is 7,002 ft (2,134 m). In 2025 it handled 12 thousand passengers.
Timeline
1 event · 1940–1940APR 1940
OpenedSt Louis Downtown Airport opens.
From Wikidata · FAAEvery airfield, 1903–2026
Runways & airfield
Schematic · N · © OpenStreetMap · FAA diagram PDF12R/30L122° / 302° · LIT
LENGTH7,002 ft2,134 mWIDTH150 ft46 mSURFACEAsphalt
12L/30R122° / 302° · LIT
LENGTH5,301 ft1,616 mWIDTH75 ft23 mSURFACEConcrete
05/23047° / 227° · LIT
LENGTH2,799 ft853 mWIDTH75 ft23 mSURFACEAsphalt
Passengers per year
2016–20257K
8K
6K
7K
6K
9K
8K
11K
12K
161718192122232425
Records & rankings
Ranked among 48,011 open airports · world · region · countryScale: share of airports ranked below, best on the right · ties shown as = and a band · passengers are each airport’s latest year on record
Radio frequencies
7 channelsA/DAPP/DEP123.700
ATISATIS121.450
CLDCLNC DEL121.800
CTAFCTAF119.925
GNDGND121.800
TWRDOWNTOWN TWR119.925
UNICUNICOM122.950