St. Louis Downtown Airport
CPS · KCPS · Cahokia/St Louis, Illinois · St Clair County · map
St. Louis Downtown Airport is a public-use airport owned by Bi-State Development Agency, 1 mile east of Cahokia/St Louis, Illinois, 413 feet above sea level. It has 3 runways; the longest, 12R/30L, is 7,002 feet of asphalt. It has a control tower, fuel (100LL avgas, Jet A) and about 124 general-aviation aircraft based on the field by the FAA's count. The FAA counts about 116,975 takeoffs and landings a year. About 5,002 passengers boarded flights here in the FAA's fiscal year 2024.
Quick answers answers refresh every morning
What is the airport code for St. Louis Downtown Airport?
Its FAA code is CPS, and its ICAO code is KCPS.
Where is St. Louis Downtown Airport?
It is 1 mile east of Cahokia/St Louis, Illinois, 413 feet above sea level.
How long is the longest runway at St. Louis Downtown Airport?
The longest of its 3 runways, 12R/30L, is 7,002 feet long.
Does St. Louis Downtown Airport have a control tower?
Yes, it has a control tower.
What fuel can you buy at St. Louis Downtown Airport?
The FAA's airport file lists 100LL avgas, Jet A.
Where can you fly nonstop from St. Louis Downtown Airport?
Airline flights go to 8 airports, the busiest of them Minneapolis-St Paul Intl/Wold-Chamberlain, Dallas Love Field, Hartsfield/Jackson Atlanta International, John Glenn Columbus International, Chicago Midway International. Every route
Are there flight schools at St. Louis Downtown Airport?
6 flight schools, flying clubs or college flight programmes are based within about 15 miles of it, including St Louis Flight Training LLC and Saint Louis University. Compare them
Where are the nearest FAA examiners to St. Louis Downtown Airport?
6 pilot examiners and 16 aviation medical examiners work within 50 nautical miles. See them by name
Weather and planning now, the forecast, warnings, pilot reports, winds aloft, restrictions
Fetching the weather now, the forecast, the warnings in force, pilot reports and the winds aloft for St. Louis Downtown Airport…
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
The airport facts, runways, radio, fuel and services, the FAA's remarks
The airport
- Codes
- FAA CPS · ICAO KCPS
- Kind
- Airport · open to the public · publicly owned
- Owner
- Bi-State Development Agency
- Elevation
- 413 feet above sea level
- Control tower
- A control tower · 6:30 am to 10:00 pm
- Attended
- around the clock
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel and services
- 100LL avgas, Jet A; the services card below
- Notes
- certified for airline service (Part 139)
- On the chart
- St Louis sectional
- Magnetic variation
- 0E
- In the FAA's files since
- April 1940
Runways 3
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 12R/30L | 7,002 × 150 ft | Asphalt, excellent | High-intensity lights |
| 12L/30R | 5,301 × 75 ft | Concrete, fair | Medium-intensity lights |
| 05/23 | 2,799 × 75 ft | Asphalt, fair | Medium-intensity lights |
- Runway 12R: PAPI, four lights on the left, right-hand traffic pattern, tree 30 ft high 809 ft from the end
- Runway 30L: ILS, PAPI, four lights on the left, medium-intensity approach lights with runway alignment lights (MALSR), pole 29 ft high 1,688 ft from the end
- Runway 12L: tree 96 ft high 3,817 ft from the end
- Runway 30R: right-hand traffic pattern, tree 72 ft high 2,664 ft from the end
- Runway 05: tree 54 ft high 811 ft from the end
- Runway 23: tower 72 ft high 1,647 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) · Tower | 119.925 | Downtown |
| UNICOM | 122.95 | |
| ATIS (recorded airport information) | 121.45 | Downtown |
| Clearance delivery | 118.275 | Downtown |
| Ground · Clearance delivery When tower closed | 121.8 | Downtown |
| Approach and departure | 123.7 | Downtown |
| Buudd and star · Farmr and star | 119.15 | Downtown |
| Delma and star · Dixee and star | 128.1 | Downtown |
Automated weather (ASOS), by phone 618-332-0001.
Fuel and services as reported to the FAA
- Fuel
- 100LL avgas, Jet A
- Repairs
- airframe and engine: major repairs
- Parking
- hangars, tie-downs
- Oxygen
- bottled oxygen (high-pressure), bulk oxygen (high-pressure)
- Also here
- charter flights, flight instruction, aircraft rental, aircraft sales
Other fields with jet fuel nearby: Scott Afb/Midamerica St. Louis Airport (15 nm east), St. Louis Lambert International (15 nm northwest), Creve Coeur Airport (19 nm northwest).
The FAA's file records what is sold and done at the field, as the airport manager reports it, not who sells it or the price; fuel sellers (FBOs) are not named in any public file. Airports selling jet fuel in Illinois · avgas.
The FAA's remarks as written in the airport file, spelled out
- Closed to schedule air carrier operations gtr than 9 psgr seats. Unscheduled air carrier operations gtr than 30 psgr seats rqr 12 hour prior permission required.
- Waterfowl on and in the vicinity of airport.
- Activate approach lights (MALSR) runway 30L when the control tower closed; runway end identifier lights runway 30R - the common traffic frequency. High-intensity runway lights runway 12R/30L preset med intst when the control tower closed. Medium-intensity runway lights runway 12L and 30R not available when the control tower closed. PAPI runway 12R and 30L operates continuously.
- 200 with prior permission required.
- Runway 05/23 not available for part 121/PART 380 operations with schedule passenger carrying operations more than 9 passenger seats and unscheduled passenger carrying operations more than 30 passenger seats. No part 121/PART 380 operations except for tax.
- Runway 12L/30R not available for part 121/PART 380 operations with schedule passenger carrying operations more than 9 passenger seats and unscheduled passenger carrying operations more than 30 passenger seats. No part 121/PART 380 operations except for tax.
- West.B.C. gross WT (2S) 160.
- Surface markings faded.
- Surface markings faded.
- Be alert for student training and helicopter operations.
- All taxiways except taxiway B4 prior permission required aircraft over 120000 pounds.
- Surface conditions not mntd 9:00 pm to 7:00 am local.
Flights and activity in the air now, the airlines, based aircraft, takeoffs and landings
Activity now checking the volunteer receiver network…
Within ten miles
- Looking…
Arrivals and departures, last hour
- Looking…
From the volunteer receiver network, a few minutes behind at most; aircraft whose owners asked the FAA not to be displayed are left out; no person is named. Open the live map here.
Scheduled and charter flights from here the DOT's airline reports · August 2025 to July 2026
Airlines reported 152 departures from CPS in those twelve months, carrying 5,544 passengers in 15,142 seats (37% filled), to 61 destinations (5 abroad) on 14 airlines.
All 61 destinations, the airlines and the aircraft, month by month
From the Bureau of Transportation Statistics' T-100 table: every segment an airline reported flying, three months in arrears. Private, business and training flights are not in it; the live picture is in the activity card.
Based aircraft as counted for the FAA, fiscal year 2024
Based aircraft, as a table
| aircraft | |
|---|---|
| single-engine | 85 |
| multi-engine | 12 |
| jets | 13 |
| helicopters | 13 |
| other | 1 |
The FAA's count is the general-aviation aircraft kept on the field (singles, twins, business jets, helicopters) from its Terminal Area Forecast, the latest year with an actual count; airline fleets are never counted as based anywhere, so a big airline airport shows a small number. The register section below shows how many aircraft are registered to owners in town, a different measure again.
Takeoffs and landings a year about 116,975, the FAA's fiscal year 2024 (October 2023 to September 2024)
Takeoffs and landings, as a table
| a year | |
|---|---|
| airline | 180 |
| air taxi and commuter | 13,663 |
| general aviation, travelling | 26,745 |
| general aviation, local | 75,699 |
| military | 688 |
Local flights stay in the traffic pattern or nearby, often practice; travelling flights arrive from or leave for somewhere else. Counts at airports without a tower are the FAA's estimates. How this compares nationally: Airports by the numbers.
Who flies and works here aircraft registered in town, the companies, the examiners nearby
Aircraft registered in Cahokia/St Louis from the FAA register
No aircraft on the register list Cahokia/St Louis, IL as the owner's town.
Who works here from the FAA's certificate lists and the register
Flight schools, flying clubs and college flight programmes based within about 15 miles:
- St Louis Flight Training LLC 7 aircraft · Cahokia, 1 mile away
- Saint Louis University 15 aircraft · Saint Louis, 7 miles away Saint Louis University is a Catholic, Jesuit research institution in Saint Louis, Missouri, offering nearly 100 undergraduate and 140 graduate programs.
- St Louis Soaring Association INC 10 aircraft · Saint Louis, 7 miles away
- Gateway Flight Training LLC 4 aircraft · Saint Louis, 7 miles away Gateway Flight Training offers recreational and professional aviation flight training at Creve Coeur Airport in Saint Louis, Missouri.
- Spirit Flyers INC 2 aircraft · Saint Louis, 7 miles away Spirit Flyers, Inc is a non-profit flying club based at Spirit of St.
- Boeing Employees Flying Club St Louis INC 1 aircraft · Saint Louis, 7 miles away
Companies in the same town as this airport, and schools within about 15 miles of it (each placed at the main public airport of its town, or at the town's centre); not every one of them works from this field. All operators · all repair stations · all flight schools · all FBOs.
Examiners and inspectors nearby designated by the FAA · within 50 nautical miles
6 pilot examiners (the FAA's designated pilot examiners, who give the practical tests for pilot certificates) are based within 50 nautical miles: 6 for private pilot, 6 for commercial and instrument, 4 for airline transport pilot, 6 for flight instructor, 2 for sport pilot; 4 for airplanes, 4 for multi-engine airplanes, 2 for helicopters. Also nearby: 3 sport aviation examiners, 16 aviation medical examiners, 1 mechanic examiner, 1 airworthiness representative (maintenance), 6 engineering representatives, 1 aircraft dispatcher examiner, 18 training center evaluators, 23 aircrew program designees, 1 training center examiner.
- Forrest Crawford private pilot, commercial and instrument, flight instructor, instrument instructor, commercial pilot, instructor renewals, military competency, ground instructor; helicopters · Ideal Aviation · Sauget, IL (1 nm) · (765) 401-0777 · [email protected]
- John Scott Saunders private pilot, commercial and instrument, airline transport pilot, flight instructor, instrument instructor, instructor renewals, ground instructor, foreign pilot certificates; airplanes, multi-engine airplanes · Parks College · Cahokia, IL (1 nm) · (314) 308-5875 · [email protected]
- Lindsey Erin Saunders private pilot, commercial and instrument, flight instructor, instrument instructor; airplanes, multi-engine airplanes · Parks College · East Saint Louis, IL (1 nm) · (314) 308-8700 · [email protected]
- David Walter Chilenski private pilot, commercial and instrument, airline transport pilot, flight instructor, sport pilot, instructor renewals, ground instructor; airplanes, multi-engine airplanes · Saint Louis, MO (5 nm) · (314) 221-2190 · [email protected]
- Daniel Reed private pilot, commercial and instrument, airline transport pilot, flight instructor, sport pilot, instructor renewals, ground instructor; airplanes, multi-engine airplanes · Wentzville, MO (36 nm) · (314) 497-9829 · [email protected]
- William Lovell private pilot, commercial and instrument, airline transport pilot, flight instructor, instrument instructor, commercial pilot; helicopters · Winfield, MO (39 nm) · (636) 515-3005 · [email protected]
All 76 nearby, by kind, with contact details
What each kind does
- DPE: Designated Pilot Examiner: gives the practical tests (checkrides) for pilot certificates and ratings.
- SAE: Sport Aviation Examiner: gives the tests for sport pilot certificates and light-sport aircraft.
- AME: Aviation Medical Examiner: a doctor who issues the medical certificates pilots must hold.
- DME: Designated Mechanic Examiner: tests candidates for the mechanic certificate (airframe and powerplant).
- DAR-T: Designated Airworthiness Representative, maintenance: issues airworthiness certificates and approvals for aircraft in service.
- DER-T: Designated Engineering Representative: approves engineering data for repairs and alterations on the FAA's behalf.
- DADE: Designated Aircraft Dispatcher Examiner: tests candidates for the dispatcher certificate.
- TCE: Training Center Evaluator: gives tests at a simulator training center.
- APD: Aircrew Program Designee: an airline's own check pilot who gives the FAA's tests to the airline's pilots.
- DCTO-E: Designee at a certificated training organisation.
Designees are listed with the name and contact details the FAA publishes for them on its designee locator (read October 10, 2026): the FAA lists them so that pilots, mechanics and companies can find them. Private individuals are not named, the site's policy at this time. A designee who would rather not appear here can ask us through the contact address on the About page. Each designee is placed at the main public airport of the town the FAA lists (or the nearest one to its zip code), so "nearby" means the town, not an exact address. All examiners by state.
Safety record the NTSB's cases at or near this airport
Accidents and incidents at or near this airport NTSB records · 42 since 1982, 2 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English. The country as a whole: Where accidents happen.
Nearby within 30 nautical miles
Connections how this airport links to the rest of the register
- NTSB accidents and incidents at or near this airport 42 since 1982 · 2 fatal
- Accidents and incidents in Illinois 2,117 since 1982 · 251 in the last ten years
- St Louis Flight Training LLC 7 aircraft · flight school
- Saint Louis University 15 aircraft · university or college with a flight programme
- St Louis Soaring Association INC 10 aircraft · flying club
- Minneapolis-St Paul Intl/Wold-Chamberlain (MSP) 18 flights in twelve months · Sun Country Airlines d/b/a MN Airlines, Delta Air Lines Inc.
- Dallas Love Field (DAL) 13 flights in twelve months · Air Canada, Allegiant Air
- Hartsfield/Jackson Atlanta International (ATL) 8 flights in twelve months · Delta Air Lines Inc.
- John Glenn Columbus International (CMH) 5 flights in twelve months · Republic Airline, KaiserAir, Inc.
- Chicago Midway International (MDW) 5 flights in twelve months · Delta Air Lines Inc., KaiserAir, Inc.
- Denver International (DEN) 4 flights in twelve months · Air Canada, Delta Air Lines Inc.
- Westchester County (HPN) 4 flights in twelve months · CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle, Jet Aviation Flight Services, Inc.
- Kansas City Downtown/Wheeler Field (MKC) 4 flights in twelve months · Delta Air Lines Inc., Sun Country Airlines d/b/a MN Airlines
- Nearby landing places within 30 nautical miles 8 airports, heliports and seaplane bases
- Public-use airports in Illinois 103 landing places
- Illinois 8,052 aircraft registered
The whole map of how records connect · these connections as data: /graph/airport/CPS.json.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 27, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.