wxdecoder
KCPS · CPS

St Louis Downtown Airport

Cahokia/St Louis, IllinoisElevation 413 ftSmall airport

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RUNWAYS

Runway detail & declared distances

3 runways · longest 7,002 ft

05/23
Dimensions
2,799 x 75 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 0547°T
Landing length (LDA)2,799 ft
TORA / TODA / ASDA2,799 / 2,799 / 2,799 ft
RWY 23227°T
Landing length (LDA)2,799 ft
TORA / TODA / ASDA2,799 / 2,799 / 2,799 ft
12L/30R
Dimensions
5,301 x 75 ft
Surface
Concrete (fair)
Edge lights
MED
RWY 12L122°T
Landing length (LDA)5,300 ft
TORA / TODA / ASDA5,300 / 5,300 / 5,300 ft
REILYes
RWY 30R302°T
Landing length (LDA)5,300 ft
TORA / TODA / ASDA5,300 / 5,300 / 5,300 ft
REILYes
Traffic patternRight
12R/30L
Dimensions
7,002 x 150 ft
Surface
Asphalt (excellent)
Edge lights
HIGH
RWY 12R122°T
Landing length (LDA)7,002 ft
TORA / TODA / ASDA7,002 / 7,002 / 7,002 ft
REILYes
VGSIPAPI (P4L)
Traffic patternRight
RWY 30L302°T
Landing length (LDA)7,002 ft
TORA / TODA / ASDA7,002 / 7,002 / 7,002 ft
ILSILS
Approach lightsMALSR
VGSIPAPI (P4L)

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

AIRPORT INFORMATION

Facility & services

St Louis Downtown Airport is in Cahokia/St Louis, Illinois. Field elevation 413 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerSANDRA SHORE
Manager phone618-337-6060
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATAKCPS / CPS
SectionalST LOUIS
Center (ARTCC)KANSAS CITY
Flight service (AFSS)SAINT LOUIS
RegionIllinois
CountryUnited States
Coordinates38.5707, -90.1562
Distance from city1 NM E
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerTowered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF119.925
UNICOM122.950
FREQUENCIES

Communications

123.7
APP/DEP
A/D
121.45
ATIS
ATIS
121.8
CLNC DEL
CLD
119.925
CTAF
CTAF
121.8
GND
GND
119.925
DOWNTOWN TWR
TWR
122.95
UNICOM
UNIC
122.950
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRPORT REMARKS

Operational remarks

›SFC MARKINGS FADED.
›WATERFOWL ON & INVOF ARPT.
›RWY 12L/30R NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. NO PART 121/PART 380 OPS EXC FOR TAX.
›RWY 05/23 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. NO PART 121/PART 380 OPS EXC FOR TAX.
›CLSD TO SKED ACR OPS GTR THAN 9 PSGR SEATS. UNSKED ACR OPS GTR THAN 30 PSGR SEATS RQR 12 HR PPR.
›SFC MARKINGS FADED.
›SFC CONDS NOT MNTD 2100-0700 LCL.
›ALL TWYS EXCP TWY B4 PPR ACFT OVER 120000 LBS.
›PCR VALUE: 400/F/D/X/T
›200 WITH PPR.
›BE ALERT FOR STUDENT TRNG & HEL OPS.
›ACTVT MALSR RWY 30L WHEN ATCT CLSD; REIL RWY 30R - CTAF. HIRL RWY 12R/30L PRESET MED INTST WHEN ATCT CLSD. MIRL RWY 12L & 30R NOT AVBL WHEN ATCT CLSD. PAPI RWY 12R & 30L OPR CONSLY.
›W.B.C. GROSS WT (2S) 160.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Wikipedia
↗KCPS on OurAirports
FREQUENTLY ASKED
Does KCPS have a METAR?
Yes. KCPS is a METAR-reporting station; the current observation loads live on this page.
Does KCPS have a TAF?
When KCPS issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KCPS?
KCPS sits at 413 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KCPS?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.