Direct flights from Houston to St Louis HOU → STL
Southwest Airlines flies nonstop from Houston (HOU) to St Louis (STL), several times daily. The flight takes about 1h 55m and covers 688 miles (1,108 km). Arrivals run on time 71.8% at HOU and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule. Schedule data from 25 July 2026.
🔔 Watch HOU → STL
We'll run this search daily and email you the cheapest direct fares we find.
Free · checked daily · one-click unsubscribe
Southwest Airlines
WN
Departure Schedule typical week
Typical weekly schedule · 29 flights per week (~4 per day) · Updated 37d ago
Southwest Airlines
Frequently asked questions
Is there a direct flight from Houston to St Louis?
Yes, Southwest Airlines operates nonstop flights from Houston (HOU) to St Louis (STL).
Which airlines fly direct from Houston to St Louis?
Southwest Airlines operates nonstop flights from Houston to St Louis.
How long is the flight from Houston to St Louis?
The nonstop flight from Houston to St Louis takes ~1h 55m (approximately 1108 km).
How often do direct flights operate from Houston to St Louis?
Nonstop flights from Houston to St Louis operate multiple daily — 29 flights per week (~4 per day).
What is the on-time performance for flights from Houston to St Louis?
Arrivals run on time 71.8% at HOU and 76.7% at STL — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
What days of the week are there direct flights from Houston to St Louis?
Direct flights from Houston to St Louis operate every day of the week.
Explore More
Scout — our search agent — hunts nonstop fares from Houston every night and pings you when one's worth booking.
Watch it work →