St Louis Downtown Airport

CPS · KCPS · Cahokia/St Louis, IL · 413 ft elevation · var 0E · Towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

ICAO / IATA: KCPS / CPS
Coordinates: 38.5707, -90.1562
Elevation: 413 ft MSL
Magnetic variation: 0E
Sectional chart: ST LOUIS
Airport use: Public
Control tower: Yes
ARTCC: KANSAS CITY (ZKC)
Flight service (FSS): SAINT LOUIS
NOTAM facility: CPS
Attendance: ALL ALL
Beacon: white-green (SS-SR)
Segmented circle: Yes
Wind indicator: lighted
Activated: 1940/04
Distance from city: 1 E

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-20

Event	Local (CDT)	UTC
Morning civil twilight Loggable night ends	05:04 AM	10:04Z
Sunrise	05:36 AM	10:36Z
Sunset	08:28 PM	01:28Z
Evening civil twilight Loggable night begins	09:00 PM	02:00Z

Loggable night (§1.1)

09:00 PM → 05:04 AM

Night currency (§61.57)

09:28 PM → 04:36 AM

Plan a flight from KCPS

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Runway 05/23

2,799 ft × 75 ft · Asphalt (Fair)

Edge lights: Med. Weight bearing: Single wheel 12k.

Heading: 047° mag · 47° true
Markings: basic
Traffic pattern: Left

Heading: 227° mag · 227° true
Markings: basic
Traffic pattern: Left

Runway 12L/30R

5,301 ft × 75 ft · Concrete (Fair)

Edge lights: Med. Weight bearing: Single wheel 30k, Double wheel 30k.

12L

Heading: 122° mag · 122° true
Markings: nonprecision
Traffic pattern: Left

30R

Heading: 302° mag · 302° true
Markings: nonprecision
Traffic pattern: Right

Runway 12R/30L

7,002 ft × 150 ft · Asphalt (Excellent)

Edge lights: High. Weight bearing: Single wheel 96k, Double wheel 125k, Dual tandem 182k.

12R

Heading: 122° mag · 122° true
Markings: precision
VGSI: 4-light PAPI (left) (3°)
Traffic pattern: Right

30L

Heading: 302° mag · 302° true
Markings: precision
VGSI: 4-light PAPI (left) (3°)
Approach lights: MALSR
Instrument approach: ILS
Traffic pattern: Left

Communication frequencies

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

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
SKE · Scott	TACAN	112.20	r274° / 14.4 NM
CSX · Cardinal	VOR-DME	116.45	r139° / 14.5 NM
TOY · Troy	VORTAC	116.00	r224° / 15 NM
STL · St Louis	VORTAC	117.40	r138° / 23.2 NM
FTZ · Foristell	VORTAC	110.80	r096° / 38.9 NM

Airport diagram

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Preview diagram

Approaches

Departures

Arrivals

Minimums & Hot Spots

Chart Supplement FAA A/FD

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Preview Chart Supplement

VFR sectional

Open KCPS on the VFR sectional (SkyVector) ↗

Services

Fuel available: 100LL, Jet A
Bulk oxygen: HIGH
Airframe service: MAJOR
Powerplant service: MAJOR
Parking: tiedowns, hangars
Other services: Charter, Instruction, Rental, Aircraft sales

Ownership & management

Owner

BI-STATE DEVELOPMENT AGENCY

6100 ARCHVIEW DRIVE, CAHOKIA, IL

618-337-6060

Manager

SANDRA SHORE

6100 ARCHVIEW DRIVE, CAHOKIA, IL

618-337-6060

Remarks FAA

CLSD TO SKED ACR OPS GTR THAN 9 PSGR SEATS. UNSKED ACR OPS GTR THAN 30 PSGR SEATS RQR 12 HR PPR.
WATERFOWL ON & INVOF ARPT.
BE ALERT FOR STUDENT TRNG & HEL OPS.
ALL TWYS EXCP TWY B4 PPR ACFT OVER 120000 LBS.
SFC CONDS NOT MNTD 2100-0700 LCL.
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.
200 WITH PPR.
PCR VALUE: 400/F/D/X/T
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.
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.
W.B.C. GROSS WT (2S) 160.
SFC MARKINGS FADED.
SFC MARKINGS FADED.

Nearby airports

7IS2 · Aero Estates AirportPrivate (5 NM)7IS9 · King Airport (7 NM)2IL7 · Ben Emge AirportPrivate (7 NM)H49 · Sackman Field (8 NM)1IL4 · Flight Park Inc AirportPrivate (9 NM)27LL · Ralph Jacobs AirportPrivate (14 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KCPS in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.