2/ 5 reviews
Easy in & out
“Smooth travel, decent and clean airport”
Chip He5★ on Google
Airports / Illinois / CPS
Small airport · CPS
St Louis Downtown Airport.
Cahokia/St Louis, Illinois · 413 ft elevation. A private-aviation gateway on the Bravo register.
4.5/5
Google rating
83 ratings
0
Operators based
413
Elevation ft
Cahokia/St Louis, IllinoisELEV 413 FTSmall airport
4.5
Google rating
83
Google reviews
ratings on Google
1
FBOs on field
ramp, fuel and handling
413
Field elevation
feet above sea level
15
Nearest alternate
nm to STL
Field standing
#18 / 42
Illinois airports by Google rating
4.5★ across 83 Google ratings , ranked against 42 rated IL fields.
15 nm
To the nearest alternate
St. Louis Lambert International Airport (STL), 4 fields within 50 nm.
Overview
St Louis Downtown Airport (KCPS / CPS) sits in Cahokia/St Louis, Illinois, where it functions as a general aviation field. The airport sits 413 feet above sea level. With no scheduled airline service, it caters to private, charter, and general aviation traffic.
No charter operator is headquartered on the field, but operators routinely position aircraft into CPS for departures. When weather or ramp space demands it, nearby options are St. Louis Lambert International Airport (STL, 15 nm), Scott AFB/Midamerica Airport (BLV, 15 nm), and St Louis Regional Airport (ALN, 20 nm). With 3 runways, the longest 7,002-foot paved runway, CPS can typically accommodate aircraft as large as VIP airliners.
Charter pricing from CPS depends on aircraft category, positioning distance, and trip timing. Compare rated operators or run a route through the cost estimator to gauge pricing from Cahokia/St Louis.
1 FBO serves KCPS. Run one? Become the preferred FBO
Ramp services
FBOs on the field
Jet Aviation Cahokia Heights
Your FBO? Claim it, free- Fuel
- Hangar
- Mon-Sun 24 hours
- Unicom 131.35
- Executive lounge
- Customs
- Conference room
- Wi-Fi
- Cafe
- Vending
- Courtesy car
- Shuttle
- +19 more
- Phone
- Website
- Address
Directory data, unpaid. FBOs can take the Preferred slot above.
What fliers highlight.
From the stored review texts
2/ 5 reviews
Terminal & facilities
“Smooth travel, decent and clean airport”
Chip He5★ on Google
Themes counted by keyword across Google review texts for St Louis Downtown Airport, every quote is verbatim from a real review.
Field capability
ICAO
KCPS
IATA
CPS
FAA / Local
CPS
Elevation
413 ft
Coordinates
38.5707° N · 90.1562° W
Airspace
D · DeltaClass D, DeltaA control tower runs the immediate airspace. Pilots establish two-way radio contact before entering, typical for busy business-aviation fields.Source: FAA NASR class airspace
Size
Small
Scheduled svc
No
Elevation vs IL fields
state range 321–871 ft
At 413 ft, CPS sits lower than 90% of the 51 Illinois fields on the register.
Runways & aircraft access
3 runways
longest 7,002 ft
- 12R/30L7,002 ft × 150 ftAsphaltLighted
- 12L/30R5,301 ft × 75 ftConcreteLighted
- 05/232,799 ft × 75 ftAsphaltUnlit
Which aircraft can operate here
vs longest paved runway 7,002 ft
CPS's 7,002 ft paved runway typically supports charter aircraft up to VIP airliners.
- Turboprop3,000 ft
- Light Jet3,500 ft
- Midsize Jet4,500 ft
- Super-Midsize Jet5,000 ft
- Heavy Jet5,500 ft
- VIP Airliner6,000 ft
Class minimums are sea-level planning rules of thumb. A specific aircraft's balanced-field length varies with weight, temperature, and field elevation. Confirm performance with the operator.
Access & alternates
Closest alternate fields by great-circle distance, every listing links to its own field brief.
- 15nmSTLSt. Louis Lambert International AirportSt Louis
- 15nmBLVScott AFB/Midamerica AirportBelleville
- 20nmALNSt Louis Regional AirportAlton/St Louis
- 24nmSUSSpirit of St Louis AirportSt Louis
- 64nmMDHSouthern Illinois AirportMurphysboro
- 73nmMWAVeterans Airport of Southern IllinoisMarion
Location
Open the full mapKCPS · St Louis Downtown Airport · Cahokia/St Louis, IL
Flight times from here
Approximate nonstop block times from CPS on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Nashville (BNA) | 222 nm | 55m |
| Chicago (ORD) | 229 nm | 56m |
| Dallas (DAL) | 474 nm | 1h 30m |
| Houston (HOU) | 593 nm | 1h 47m |
| Washington DC (IAD) | 595 nm | 1h 47m |
| Austin (AUS) | 625 nm | 1h 51m |
| Denver (DEN) | 679 nm | 1h 59m |
| New York (TEB) | 755 nm | 2h 9m |
Common questions
- What size private jets can use CPS?
- St Louis Downtown Airport's longest paved runway is 7,002 ft, which typically supports charter aircraft up to VIP airliners. Lighter classes (turboprops, light and midsize jets) operate comfortably; confirm exact performance for a specific tail with the operator, since balanced-field length shifts with weight, temperature, and elevation.
- What is the longest runway at CPS?
- St Louis Downtown Airport has 3 runways; the longest measures 7,002 ft on a paved surface and is lit for night operations.
- Which FBOs are at St Louis Downtown Airport?
- One FBO serves CPS: Jet Aviation Cahokia Heights. Phone, website, hours, unicom and services for each are listed on this page. Call ahead for fuel, ramp space, and ground handling.
- What is the nearest major airport to CPS?
- The closest alternate is St. Louis Lambert International Airport (STL), about 15 nm away, followed by Scott AFB/Midamerica Airport (BLV) at 15 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from CPS to major cities?
- Typical block times on a midsize jet: Nashville about 55m (222 nm), Chicago about 56m (229 nm), Dallas about 1h 30m (474 nm). Faster classes trim these times; add positioning and taxi for the real schedule.