Flights St. Louis → Houston
STL → HOU
Route overview
The flight route from St. Louis to Houston operates with a Boeing 737-300 aircraft and has an on-time performance rate of 76%, with an average delay of 12.2 minutes per flight. With over three hundred seventy-six flights annually, this route serves the highly trafficked destination airport in Houston, which accommodates nearly 13.9 million passengers each year.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The St. Louis (STL) → Houston (HOU) route is operated by Southwest Airlines. Across 503 flights monitored in recent months, 75% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 0.60%. FlightGuard's average computed risk is 22/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Houston the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from St. Louis the average ATFM delay is 2.0 minutes.
Heading to Houston: what to expect in this direction
Flying from St. Louis (STL) to Houston (HOU) heads south-west for about 1,108 km, a flight time of roughly 1h 48m.
Departures from St. Louis on this leg cluster in the overnight window: about 43% of STL-HOU flights take off then.
Air-traffic congestion: departing St. Louis the average ATFM delay is 2.0 min (atfm); arriving into Houston it is 2.0 min (atfm).
Across 503 tracked STL-HOU flights, 75% left on time with an average delay of 13 min and a 0.6% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating STL-HOU
Airports
Frequently asked questions about STL-HOU
On the St. Louis (STL) -> Houston (HOU) route, on-time performance is 75% with an average delay of 13 minutes, based on 503 tracked flights.
The cancellation rate on St. Louis-Houston is 0.60% across 503 monitored flights.
The route is operated by 1 airline: Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Houston, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
