United Airlines
Star Alliance
Did you mean flights from Houston to St. Louis?
United States
Lambert-Saint Louis International Airport
Switch direction
United States
George Bush Intercontinental Airport
Click to show full flight schedule
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 IAH, 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 IAH, which is United 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 IAH flight schedule.
Flights from STL to IAH are operated 21 times a week, with an average of 3 flights per day. Departure times vary between 06:00 - 18:30. The earliest flight departs at 06:00, the last flight departs at 18:30. 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.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from St. Louis to Houston takes 2 hours and 18 minutes. The flight distance between St. Louis and Houston is 668 miles (or 1,075 km).
There are 2 airports in Houston: George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).
There are 21 flights per week flying from St. Louis to Houston (as of April 2026).
2 hours and 18 minutes is the average flight time from St. Louis to Houston.
The distance from St. Louis to Houston is 668 miles (1,075 kilometers).
United Airlines is the only airline flying nonstop from St. Louis to Houston.
Star Alliance is currently the only alliance flying nonstop from St. Louis to Houston.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from St. Louis to Houston:
The earliest flight departs at 06:00 from St. Louis and arrives at 08:19 at Houston.
The latest flight departs at 18:30 from St. Louis and arrives at 20:50 at Houston.
668 miles (1,075 km) · 2h 18m
06:00
08:19
United Airlines
Star Alliance
UA 1371
United Airlines
Airbus A320-100/200
Y
W
J
F
06:00
08:18
United Airlines
Star Alliance
UA 1371
United Airlines
Boeing 737-900
Y
W
J
F
06:00
08:18
United Airlines
Star Alliance
UA 1371
United Airlines
Boeing 737-900
Y
W
J
F
10:09
12:33
United Airlines
Star Alliance
UA 6213
United Airlines
Embraer 175
Y
W
J
F
10:14
12:39
United Airlines
Star Alliance
UA 6213
United Airlines
Embraer 175
Y
W
J
F
16:44
19:05
United Airlines
Star Alliance
UA 6219
United Airlines
Embraer 175
Y
W
J
F
16:49
19:10
United Airlines
Star Alliance
UA 6219
United Airlines
Embraer 175
Y
W
J
F
16:49
19:10
United Airlines
Star Alliance
UA 6219
United Airlines
Embraer 175
Y
W
J
F
Click to Check Prices
