STL → HOUSt Louis to Houston

live

Direct flights from St Louis (STL) to Houston (HOU): 7 nonstop departures observed each week across 1 airline. The median arrival is 6 minutes early. No cancellations were recorded across the 2 tracked flights. The nonstop covers 1,108 km, an estimated 1 hour 55 minutes in the air. Measured by Pro Flight Search from live flight boards at St Louis and Houston. Updated 10 September 2026 at 17:26 UTC.

STL St Louis smooth · +12
HOU Houston smooth · +0
1,108 km · ~1h 55m est.
dep bank 05:15–20:557x weekly
Running clean · 1 airline · 7x weekly · nonstop
73 / 100

route health from live STL and HOU delay boards

Median arrival delay is −6 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−6 minacross the last 2 operated legs
Flight time~1h 55mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN

Flights WN3524 varies daily · WN4419 08:40 Tu We · WN3713 varies daily · WN3841 12:15 Mo Th Fr Sa

History

operated legs · board outcomes
09-10WN3524dep +5 → arr−8
09-09WN3524arrived−6

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
STLSt Louis +12 min smooth 🌫 overcast · NNW 4 kt Full STL delay board →
HOUHouston +0 min smooth 🌤 scattered clouds · W 4 kt Full HOU delay board →

Weather lens

Current conditions put the pressure at STL: 43% odds of a 15+ minute delay and around +12 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the St Louis to Houston route actually runs

Pro Flight Search records official board updates for nonstop STL to HOU flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — St Louis (STL) to Houston (HOU) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/STL-HOU
How we measure this →

STL to HOU questions

Is STL–HOU running on time right now?

Mostly on schedule. The departure side at STL is the weaker end, route health score 73/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on STL–HOU?

Operators schedule morning departures around 08:40 and evening departures around 17:50 from STL. Earlier flights typically land before destination-airport delays accumulate later in the day; check the HOU delay card to confirm conditions when you'd arrive.

How long is the flight from STL to HOU?

Great-circle distance is 1,108 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 108–125 min gate-to-gate on this route.

How often does STL–HOU fly?

Southwest Airlines runs the route with about 29 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.