Nonstop flights from St. Louis to Houston

United Airlines flies this route 4 to 5 times a day.

STLSt. Louis Lambert International

668 mi · 32 flights a week · about 2h 24m

IAHHouston George Bush Intercontinental

STLIAH

When they leave

St. Louis time

6:15a5:55pFirst departure 6:15 AM, last 5:55 PM

Three in the morning, 6:15 AM to 11:00 AM, then one afternoon flight at 2:55 PM, then one evening flight at 5:55 PM.

Every flight

Earliest first

6:15 AM→8:35 AMUnited AirlinesAirbus A319 · 2h 20mDaily
8:30 AM→11:01 AMUnited AirlinesCRJ 700 · 2h 31mDaily
11:00 AM→1:24 PMUnited AirlinesEmbraer 175 · 2h 24mDaily
2:55 PM→5:19 PMUnited AirlinesEmbraer 175 · 2h 24mDaily
5:55 PM→8:25 PMUnited AirlinesEmbraer 175 · 2h 30mWed, Thu, Fri, Sun

Schedules last checked Oct 6, 2026. Times are local.

Flying from St. Louis to Houston

United Airlines is the only airline flying nonstop from St. Louis to Houston, 4 to 5 times a day on the Embraer 175, Airbus A319 and CRJ 700.

There are 4 or 5 flights every day of the week. The first arrival in Houston is at 8:35 AM and the last at 8:25 PM. The flight covers 668 miles, and scheduled flight times run from 2h 20m to 2h 31m.

Flying back, Houston to St. Louis has 24 nonstop flights a week. From St. Louis, William P. Hobby (HOU) is the other Houston area airport with nonstop flights, 31 a week.