Southwest® flights from St. Louis to Houston (Hobby) from $109

Promo Code

Low fares from St. Louis to Houston (Hobby)

$

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 10/24/2026

One-way

Basic

From
$109
Seen: 16 hrs ago

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 11/17/2026

One-way

Basic

From
$109
Seen: 15 hrs ago

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 10/01/2026

One-way

Basic

From
$109
Seen: 11 hrs ago

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 10/21/2026

One-way

Basic

From
$109
Seen: 13 hrs ago

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 11/19/2026

One-way

Basic

From
$109
Seen: 14 hrs ago

St. Louis (STL)to

Houston (Hobby) (HOU)
Depart: 10/06/2026

One-way

Basic

From
$109
Seen: 23 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from St. Louis to Houston (Hobby)

Aug 2026
From$386*
Seen: 5 hrs ago
One Way/Basic
Sep 2026
From$109*
Seen: 23 hrs ago
One Way/Basic
Oct 2026
From$109*
Seen: 5 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $494
Displaying fares for August-2026
  • STL–HOU, 08/22/2026: From $494
    22

    Sat

    AUG

  • STL–HOU, 08/23/2026: From $494
    23

    Sun

  • STL–HOU, 08/24/2026: From $494
    24

    Mon

  • STL–HOU, 08/25/2026: From $494
    25

    Tue

  • STL–HOU, 08/26/2026: From $494
    26

    Wed

  • STL–HOU, 08/27/2026: From $494
    27

    Thu

  • STL–HOU, 08/28/2026: From $494
    28

    Fri

  • STL–HOU, 08/29/2026: From $386
    29

    Sat

  • STL–HOU, 08/30/2026: From $386
    30

    Sun

  • STL–HOU, 08/31/2026: From $386
    31

    Mon

  • STL–HOU, 09/01/2026: From $386
    01

    Tue

    SEP

  • STL–HOU, 09/02/2026: From $386
    02

    Wed

  • STL–HOU, 09/03/2026: From $386
    03

    Thu

  • STL–HOU, 09/04/2026: From $386
    04

    Fri

  • STL–HOU, 09/05/2026: From $247
    05

    Sat

  • STL–HOU, 09/06/2026: From $247
    06

    Sun

  • STL–HOU, 09/07/2026: From $247
    07

    Mon

  • STL–HOU, 09/08/2026: From $247
    08

    Tue

  • STL–HOU, 09/09/2026: From $247
    09

    Wed

  • STL–HOU, 09/10/2026: From $247
    10

    Thu

  • STL–HOU, 09/11/2026: From $128
    11

    Fri

  • STL–HOU, 09/12/2026: From $109
    12

    Sat

  • STL–HOU: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • STL–HOU, 09/14/2026: From $109
    14

    Mon

  • STL–HOU, 09/15/2026: From $109
    15

    Tue

  • STL–HOU, 09/16/2026: From $109
    16

    Wed

  • STL–HOU, 09/17/2026: From $109
    17

    Thu

  • STL–HOU, 09/18/2026: From $128
    18

    Fri

  • STL–HOU, 09/19/2026: From $109
    19

    Sat

  • STL–HOU, 09/20/2026: From $174
    20

    Sun

  • STL–HOU, 09/21/2026: From $109
    21

    Mon

    • Range$109-$494

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Lambert-St Louis Int'l Airport
    Arriving at:
    William P. Hobby Airport
    Average flight time:
    2 hours 4 minutes
    Distance:
    687 miles

    Route Information

    156† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 3‡ Nonstop flights on Saturday
    • 5‡ Nonstop flights on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from St. Louis to Houston (Hobby) is 2 hours 4 minutes.
    There are 156 weekly flights from St. Louis to Houston (Hobby) on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Houston (Hobby) 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Houston (Hobby) 3 times per day on Saturdays and 5 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Houston (Hobby) with Southwest, check out our Low Fare Calendar.
    You can rent a car at William P. Hobby Airport book yours with your flight.
    Yes! Flights from St. Louis to Houston (Hobby)—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

    Explore Flights from Other Popular Origins

    Popular Flights from St. Louis