Open mapKCPS · CPS St Louis Downtown Airport
Cahokia/St Louis, Illinois, United States
Not for navigation. Data: OurAirports (public domain); FAA NASR (US Government public domain), updated Nov 8, 2026.
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Airport facts
- Ident
- KCPS
- FAA LID
- CPS
- IATA
- CPS
- Type
- Small airport
- Public use
- Yes
- Municipality
- Cahokia/St Louis
- Region
- Illinois
- Country
- United States
- Elevation
- 413 ft (126 m)
- Coordinates
- 38.5707° N 90.1562° W
38°34′15″N 90°09′22″W - Towered
- Yes
- Wikipedia
- St Louis Downtown Airport
- Chart Supplement
- Chart Supplement (opens in a new tab)2611 CPS
Runways
| Runway | Length × width | Surface | Lighted | Status |
|---|---|---|---|---|
| 12R/30L | 7,002 × 150 ft | Asphalt | Yes | Open |
| 12L/30R | 5,301 × 75 ft | Concrete | Yes | Open |
| 05/23 | 2,799 × 75 ft | Asphalt / F | No | Open |
Frequencies
| Type | Name | MHz |
|---|---|---|
| ATIS | DOWNTOWN | 121.450 |
| CLD | DOWNTOWN | 118.275 |
| CLD | WHEN TWR CLSD | 121.800 |
| GND | DOWNTOWN | 121.800 |
| TWR | DOWNTOWN | 119.925 |
| TWR | DOWNTOWN | 379.300 |
| CTAF | 119.925 | |
| UNIC | 122.950 | |
| APP/DEP | 123.700 | |
| APP/DEP | 371.875 |