Nonstop flights from Houston to St. Louis

United Airlines flies this route 2 to 4 times a day.

IAHHouston George Bush Intercontinental

668 mi · 24 flights a week

STLSt. Louis Lambert International

IAHSTL

When they leave

Houston time

8:00a8:15pFirst departure 8:00 AM, last 8:15 PM

One morning flight at 8:00 AM, then three in the afternoon, 12:04 PM to 3:52 PM, then two in the evening, 6:15 PM to 8:15 PM.

Every flight

Earliest first

8:00 AM→10:10 AMUnited AirlinesEmbraer 175Mon, Tue, Wed, Thu, Fri
8:00 AM→10:10 AMUnited AirlinesEmbraer 175Sun
12:04 PM→2:15 PMUnited AirlinesEmbraer 175Mon, Tue, Thu, Fri, Sun
12:04 PM→2:13 PMUnited AirlinesCRJ 700Wed, Sat
3:36 PM→5:50 PMUnited AirlinesEmbraer 175Mon, Thu
3:52 PM→6:04 PMUnited AirlinesAirbus A319Tue
6:15 PM→8:29 PMUnited AirlinesEmbraer 175Sun
8:15 PM→10:27 PMUnited AirlinesCRJ 700Daily

Schedules last checked Sep 21, 2026. Times are local.

Flying from Houston to St. Louis

United Airlines is the only airline flying nonstop from Houston to St. Louis, 2 to 4 times a day on the Embraer 175, CRJ 700 and Airbus A319.

Flights run every day of the week, from 2 on Saturdays to 4 on Mondays, Tuesdays, Thursdays and Sundays. The first arrival in St. Louis is at 10:10 AM and the last at 10:27 PM. The flight covers 668 miles.

Flying back, St. Louis to Houston has 32 nonstop flights a week. William P. Hobby (HOU) also has nonstop flights to St. Louis, 32 a week.

Return flights

St. Louis to HoustonView

Every Houston airport

All Houston to St. Louis flightsView

Find the cheapest day to fly from Houston to St. Louis.

Schedules as of Oct 9, 2026.