3
Runways
18
Frequencies
0
Procedures
20
NOTAMs
Quick Facts
ICAO
KCPS
FAA
CPS
Elevation
412.9 ft MSL
Runways
3
Frequencies
18
Tower
Yes
Fuel
100LL,A
Coordinates
38.570, -90.155
Airport Information
Facility Type
AIRPORT
Elevation
412.9 ft MSL
Control Tower
Yes
Fuel Types
100LL,A
ARTCC
KANSAS CITY
Coordinates
38.5704, -90.1551
Ownership
Public
Hours of Operation
Current Weather
METAR KCPS 221353Z 06007KT 10SM OVC017 17/13 A2996 RMK AO2 SLP145 T01720133 $
Flight Category
MVFR
Wind
60° at 7 kt
Visibility
10+ SM
Temperature
17.2°C
Dewpoint
13.3°C
Altimeter
1014.60 inHg
Cloud Cover
OVC
Observed 2026-05-22 13:53Z
Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 05/23 | 2,799 ft | 75 ft | ASPH | MED |
| 12L/30R | 5,301 ft | 75 ft | CONC | MED |
| 12R/30L | 7,002 ft | 150 ft | ASPH | HIGH |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| APCH/P DEP/P | 371.875 | SAINT LOUIS TRACON |
| APCH/P DEP/P | 123.7 | SAINT LOUIS TRACON |
| ATIS | 121.45 | ST LOUIS DOWNTOWN |
| BUUDD STAR | XXX.XXX | SAINT LOUIS TRACON |
| BUUDD STAR | XXX.XXX | SAINT LOUIS TRACON |
| CD/P | XXX.XXX | SAINT LOUIS TRACON |
| CD/P | XXX.XXX | ST LOUIS DOWNTOWN |
| CTAF | XXX.XXX | ST LOUIS DOWNTOWN |
| DELMA STAR | XXX.XXX | SAINT LOUIS TRACON |
| DELMA STAR | XXX.XXX | SAINT LOUIS TRACON |
| DIXEE STAR | XXX.XXX | SAINT LOUIS TRACON |
| DIXEE STAR | XXX.XXX | SAINT LOUIS TRACON |
| FARMR STAR | XXX.XXX | SAINT LOUIS TRACON |
| FARMR STAR | XXX.XXX | SAINT LOUIS TRACON |
| GND/P | XXX.XXX | ST LOUIS DOWNTOWN |
| LCL/P | XXX.XXX | ST LOUIS DOWNTOWN |
| LCL/P | XXX.XXX | ST LOUIS DOWNTOWN |
| UNICOM | XXX.XXX | ST LOUIS DOWNTOWN |
Active NOTAMs
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PONTIAC
Illinois airports
KCPS Operational Overview
Location & Facility
ST LOUIS DOWNTOWN (KCPS) is a publicly owned airport open to the public located in CAHOKIA/ST LOUIS, Illinois, United States. The field sits at an elevation of 412.9 feet above mean sea level (MSL) at coordinates 38.5704°N, 90.1551°W.
Runways
ST LOUIS DOWNTOWN has 3 runways. The longest runway (05/23) measures 2,799 feet by 75 feet with a asph surface. Other runways include 12L/30R (5,301 ft, CONC), 12R/30L (7,002 ft, ASPH).
Communications & Operations
ST LOUIS DOWNTOWN is a towered airport. ATIS is available on 121.45 MHz. A total of 18 communication frequencies are published for this facility.
Services & Fuel
ST LOUIS DOWNTOWN offers 100LL,A fuel. Pilots planning fuel stops should confirm availability with the FBO, as hours and pricing may vary.
Current Conditions
The current flight category at ST LOUIS DOWNTOWN is MVFR (Marginal VFR — reduced visibility or ceiling). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations. There are currently 20 active NOTAMs for this facility.
Frequently Asked Questions
What is KCPS?
KCPS is the ICAO identifier for ST LOUIS DOWNTOWN, a public-use airport located in CAHOKIA/ST LOUIS, Illinois, United States.
How many runways does ST LOUIS DOWNTOWN have?
ST LOUIS DOWNTOWN (KCPS) has 3 runways. See the runway table above for dimensions and surface types.
What is the elevation of KCPS?
The field elevation of ST LOUIS DOWNTOWN is 412.9 feet above mean sea level (MSL).
Is fuel available at KCPS?
Yes, ST LOUIS DOWNTOWN offers 100LL,A fuel.
What are the current weather conditions at KCPS?
The current flight category at ST LOUIS DOWNTOWN is MVFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at KCPS?
There are currently 20 active NOTAMs for ST LOUIS DOWNTOWN. Sign up for AeroCopilot to read decoded NOTAM text and AI interpretations.
How do I access complete data for KCPS?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for ST LOUIS DOWNTOWN.
Where is ST LOUIS DOWNTOWN located?
ST LOUIS DOWNTOWN (KCPS) is located in CAHOKIA/ST LOUIS, Illinois, United States, at an elevation of 412.9 ft MSL.