Southwest Airlines
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United States
Lambert-Saint Louis International Airport
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United States
William P. Hobby Airport
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Scan through all non-stop flights from St. Louis to Houston. The full flight schedule below gives an overview of all non-stop flights from STL to HOU, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Houston is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Houston any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from St. Louis STL to Houston HOU, which is Southwest Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their STL HOU flight schedule.
Flights from STL to HOU are operated 30 times a week, with an average of 4 flights per day. Departure times vary between 05:00 - 22:15. The earliest flight departs at 05:00, the last flight departs at 22:15. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from St. Louis to Houston takes 2 hours and 5 minutes. The flight distance between St. Louis and Houston is 688 miles (or 1,107 km).
There are 2 airports in Houston: William P. Hobby Airport (HOU) and George Bush Intercontinental Airport (IAH).
There are 30 flights per week flying from St. Louis to Houston (as of April 2026).
2 hours and 5 minutes is the average flight time from St. Louis to Houston.
The distance from St. Louis to Houston is 688 miles (1,107 kilometers).
Southwest Airlines is the only airline flying nonstop from St. Louis to Houston.
There are no alliances flying direct from St. Louis to Houston at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from St. Louis to Houston:
The earliest flight departs at 05:00 from St. Louis and arrives at 07:05 at Houston.
The latest flight departs at 22:15 from St. Louis and arrives at 00:10 at Houston.
688 miles (1,107 km) · 2h 5m
05:10
07:25
Southwest Airlines
WN 4542
Southwest Airlines
Boeing 737 MAX 8
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05:15
07:30
Southwest Airlines
WN 4466
Southwest Airlines
Boeing 737-800 (winglets)
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05:15
07:30
Southwest Airlines
WN 4466
Southwest Airlines
Boeing 737 MAX 8
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05:15
07:30
Southwest Airlines
WN 4466
Southwest Airlines
Boeing 757
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05:25
07:35
Southwest Airlines
WN 4466
Southwest Airlines
Boeing 737 MAX 8
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05:40
07:50
Southwest Airlines
WN 4466
Southwest Airlines
Boeing 737 MAX 8
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06:30
08:45
Southwest Airlines
WN 4542
Southwest Airlines
Boeing 737 MAX 8
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07:15
09:30
Southwest Airlines
WN 4542
Southwest Airlines
Boeing 737-800 (winglets)
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08:25
10:40
Southwest Airlines
WN 3865
Southwest Airlines
Boeing 757
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08:25
10:35
Southwest Airlines
WN 4467
Southwest Airlines
Boeing 757
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08:35
10:50
Southwest Airlines
WN 784
Southwest Airlines
Boeing 737-800 (winglets)
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08:35
10:45
Southwest Airlines
WN 4467
Southwest Airlines
Boeing 757
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08:35
10:45
Southwest Airlines
WN 4467
Southwest Airlines
Boeing 737 MAX 8
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08:45
10:55
Southwest Airlines
WN 4467
Southwest Airlines
Boeing 757
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12:25
14:35
Southwest Airlines
WN 4468
Southwest Airlines
Boeing 737-800 (winglets)
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13:10
15:25
Southwest Airlines
WN 2591
Southwest Airlines
Boeing 757
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14:00
16:15
Southwest Airlines
WN 1712
Southwest Airlines
Boeing 757
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16:20
18:35
Southwest Airlines
WN 3486
Southwest Airlines
Boeing 737 MAX 8
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16:25
18:35
Southwest Airlines
WN 4468
Southwest Airlines
Boeing 757
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17:20
19:30
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 737-800 (winglets)
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17:45
20:05
Southwest Airlines
WN 472
Southwest Airlines
Boeing 757
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18:15
20:25
Southwest Airlines
WN 4468
Southwest Airlines
Boeing 757
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18:30
20:45
Southwest Airlines
WN 865
Southwest Airlines
Boeing 737 MAX 8
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18:40
20:55
Southwest Airlines
WN 865
Southwest Airlines
Boeing 757
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19:15
21:25
Southwest Airlines
WN 1753
Southwest Airlines
Boeing 757
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19:40
21:55
Southwest Airlines
WN 2314
Southwest Airlines
Boeing 737 MAX 8
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20:50
23:00
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 757
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20:55
23:05
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 757
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21:40
23:55
Southwest Airlines
WN 2311
Southwest Airlines
Boeing 737-800 (winglets)
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21:45
23:55
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 757
Y
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21:45
23:55
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
21:45
23:55
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 757
Y
W
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F
21:45
23:55
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
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21:50
00:05
Southwest Airlines
WN 2311
Southwest Airlines
Boeing 757
Y
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21:55
00:10
Southwest Airlines
WN 2311
Southwest Airlines
Boeing 737 MAX 8
Y
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F
21:55
00:05
Southwest Airlines
WN 2082
Southwest Airlines
Boeing 737 MAX 8
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F
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