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St Louis Downtown Airport (KCPS/CPS) — Cahokia/St Louis, United States

St Louis Downtown Airport (KCPS/CPS) serves Cahokia/St Louis, United States. This is a small airport with 3 runways (05/23, 12L/30R). Field elevation is 413 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.

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83% Data Complete 43 of 52 points
Missing: Contacts
Section Breakdown
Basic Info 7/7
Runways 4/4
Frequencies 4/4
Operations 2/2
Fuel 1/1
Contacts 0/2
Additional Info 3/10
Data last updated:
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Basic Airport Information

  • ICAO: KCPS
  • Name: St Louis Downtown Airport
  • Type: small_airport
  • Category: Domestic
  • Latitude: 38.570702
  • Longitude: -90.156197
  • Elevation: 413 ft
  • Country: United States
  • Municipality: Cahokia/St Louis
  • IATA Code: CPS
  • FAA Code: N/A
  • FIR: N/A
  • Timezone: America/Chicago
  • Distance from City: N/A km
  • VFR: Yes
  • IFR: No

Runways

Runway 05/23

  • Designation: 05/23
  • Dimensions: 853x23m
  • Surface: ASPH-F
  • PCN: 11
  • Lighting: Not lighted
  • NAVAIDs: N/A
  • Approach Types: N/A
  • Remarks: N/A

Runway 12L/30R

  • Designation: 12L/30R
  • Dimensions: 1616x23m
  • Surface: CON
  • PCN: 10
  • Lighting: Lighted
  • NAVAIDs: N/A
  • Approach Types: N/A
  • Remarks: N/A

Runway 12R/30L

  • Designation: 12R/30L
  • Dimensions: 2134x46m
  • Surface: ASP
  • PCN: N/A
  • Lighting: Lighted
  • NAVAIDs: N/A
  • Approach Types: N/A
  • Remarks: N/A

Frequencies

  • Tower: 119.925, 119.925 MHz
  • Ground: 121.800 MHz
  • Operations: 119.925, 122.950 MHz
  • Traffic/Approach: N/A
  • ATIS: 121.450 MHz

Operation Hours

Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours

St Louis Downtown Airport operates 24 hours (H24). See all 24-hour airports worldwide →

  • Extra Hours On Request: No
  • Remarks: N/A

Contacts

  • AIS Tel: N/A
  • ARO Tel: N/A
  • MET Tel: N/A
  • Admin Tel: +1 618-337-6060
  • Health Tel: N/A
  • Police Tel: N/A
  • Authorities Tel: N/A
  • Website: N/A
  • Remarks: N/A

Slots / PPR

  • Slot Required: No
  • PPR Required: No
  • PPR Contact: N/A
  • Remarks: N/A

Fuel Information

  • Fuel Type: 100LL
  • Price/L: N/A
  • Last Updated: N/A
  • Remarks: N/A
  • Fuel Type: Jet A
  • Price/L: N/A
  • Last Updated: N/A
  • Remarks: N/A

Immigration

  • Port of Entry: No
  • GENDEC Required: No
  • GAR Required: No
  • Remarks: N/A

Airport Services

No services listed for this airport yet.

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United States Permit Requirements

Fast Landing: 1d
  • Overflight Permit: No
  • Landing Permit: Conditional
  • Overflight Lead Time: N/A
  • Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:

No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.

View Full United States Permit Details

Active NOTAMs

08/031 warning
ILS out of service
ILS RWY 30L OM U/S
2025-08-29 07:47:00 2026-08-26 20:00:00
06/017 caution
Taxiway lighting closed
TWY B BTN TWY B4 AND TWY B6 CLSDTWY B6RSTRCTN>0? TO|
2026-06-17 11:00:00 2026-09-30 23:00:00
06/018 caution
Taxiway lighting closed
TWY B5 BTN RWY 12L/30R AND RWY 12R/30L CLSDRWY 12R/30LRSTRCTN>0? TO|
2026-06-17 11:00:00 2026-09-30 23:00:00

+16 more active NOTAMs

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Airport History

Discover the key milestones and historical events that shaped St Louis Downtown Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.

Explore History
Frequently Asked Questions
What are the operating hours of KCPS?
St Louis Downtown Airport operates from 00:00 to 23:59.
What is the tower frequency at KCPS?
The tower frequency at St Louis Downtown Airport is 119.925, 119.925 MHz.
What fuel is available at KCPS?
St Louis Downtown Airport offers 100LL, Jet A.
Does KCPS require landing permits?
Yes, landing permits are required for St Louis Downtown Airport (United States).
Where is KCPS located?
St Louis Downtown Airport (KCPS) is located in Cahokia/St Louis, United States.
What is the IATA code for KCPS?
The IATA code for St Louis Downtown Airport is CPS.
How long is the runway at KCPS?
The main runway at St Louis Downtown Airport (05/23) measures 853x23m.