Cahokia/St Louis to Houston (CPS–IAH) — Airlines, Schedules & Connections

CPS Airport Page →
airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 16 1-stop flights
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  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
OKC Oklahoma City ~4h 24m → CMEKNH Oklahoma City (OKC) to Houston flights
AUS Austin ~4h 26m → ACCMEK Austin (AUS) to Houston flights
DFW Dallas-Fort Worth ~4h 48m → AAASAY Dallas-Fort Worth (DFW) to Houston flights
MKC Kansas City ~4h 55m UA → UA Kansas City (MKC) to Houston flights
MDW Chicago ~5h 9m DL → UA Chicago (MDW) to Houston flights
DTW Detroit ~5h 42m → AMDLF9 Detroit (DTW) to Houston flights
PIT Pittsburgh ~5h 48m → NZUA Pittsburgh (PIT) to Houston flights
MSP Minneapolis ~5h 49m → AFAMDL Minneapolis (MSP) to Houston flights
ATL Atlanta ~6h 22m → AFAMDL Atlanta (ATL) to Houston flights
IAD Dulles ~6h 59m → AVAZCA Dulles (IAD) to Houston flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Cahokia/St Louis to Houston
Connecting service available through multiple hubs.

While no nonstop service exists between CPS and IAH, 1-stop connecting options are available.

Also explore CPS Routes IAH Routes CPS Live Flights IAH Live Flights IAH Delays
All flights from Houston (IAH) Houston to Cahokia/St Louis flights
Connections

Connection Landscape

1-stop and 2-stop options for CPS to IAH.
1-STOP
One-Stop Connections
16
Hubs
~4h
Fastest
~11h
Longest
OKC ~4h 24m AUS ~4h 26m DFW ~4h 48m MKC ~4h 55m MDW ~5h 9m
Verified with published schedule alignment and minimum connection time.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
CPS → IAH
72%
Moderate delays possible. Allow buffer time.
Arriving
72%
Return
IAH → CPS
77%
Generally reliable. Most flights run on time.
Departing
77%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAH delays →
Alternatives

Other ways to reach Houston from Cahokia/St Louis

Nearby airports with service to George Bush Intercontinental Airport.
Metric CPS→IAH STL→IAH PAH→IAH
Distance from CPS – 17 mi 129 mi
Nonstop airlines – 7 1
Weekly flights – 111 14
St Louis (STL) to Houston flights · Paducah (PAH) to Houston flights
Airports within 200 miles of CPS with service to George Bush Intercontinental Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Houston is 0 hours the same as Cahokia/St Louis.
CPS: CDT · IAH: CDT

When it's 6:00 PM in Cahokia/St Louis, it's 6:00 PM in Houston.
Getting from IAH

No direct rail from IAH. The METRO bus 102 (IAH Express) runs to downtown Houston's transit center (60–90 min, $1.25). Taxis to downtown Houston cost $50–70. Ride-hails pick up at the designated Rideshare zones outside baggage claim on the lower level.IAH has five terminals (A–E) connected by an underground tunnel with trams. Terminal D handles international arrivals. Rental car agencies are in a consolidated facility adjacent to Terminal C; a free IAH Connector bus runs between terminals and the rental car center. The Galleria / Uptown area costs $35–50 by ride-hail.

Houston Climate

Humid subtropical climate. Hot, humid, and wet for much of the year. Summers are brutal (33–38°C) with high humidity and near-daily afternoon thunderstorms. Severe storms with hail and high winds regularly cause ground stops from April through September. Houston's flooding risk is significant. Heavy rain events, including tropical system remnants, have flooded airport roads, cutting off surface access even when the airport itself remains operational.

Winters are mild (5–18°C) with occasional ice storms. These are rare but highly disruptive when they occur. Hurricane season (June–November) requires monitoring for Gulf storms. October through March has the best flying weather.

Check current weather forecasts before travel.
Facts

CPS–IAH Quick Facts

Key statistics for the Cahokia/St Louis to Houston route.
Route details
Time difference0 hours
Airlines (nonstop)0
1-stop connectionsAvailable
Origin: CPS
Full nameSt Louis Downtown Airport
IATA / ICAOCPS / KCPS
TimezoneAmerica/Chicago
Elevation413 ft / 126 m
Destination: IAH
Full nameGeorge Bush Intercontinental Airport
IATA / ICAOIAH / KIAH
TimezoneAmerica/Chicago
Passengers/yr46.7M
Elevation97 ft / 30 m
FAQ

Frequently Asked Questions

Common questions about CPS to IAH flights.
Yes, 1-stop connections are available, ranked by layover time.
Yes, return flights from IAH to CPS are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include STL and PAH. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Connecting Options and Alternatives

1-stop connecting options are also available. Nearby alternative airports include St Louis (STL) and Paducah (PAH).