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

Promo Code

Low fares from Houston (Hobby) to St. Louis

$

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 09/05/2026

One-way

Basic

From
$109
Seen: 8 hrs ago

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 10/30/2026

One-way

Basic

From
$109
Seen: 14 hrs ago

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 09/06/2026

One-way

Basic

From
$109
Seen: 13 hrs ago

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 09/11/2026

One-way

Basic

From
$109
Seen: 59 minutes ago

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 09/24/2026

One-way

Basic

From
$128
Seen: 22 hrs ago

Houston (Hobby) (HOU)to

St. Louis (STL)
Depart: 09/28/2026

One-way

Basic

From
$128
Seen: 14 hrs ago

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Explore flights from Houston (Hobby) to St. Louis

Aug 2026
From$128*
Seen: 12 hrs ago
One Way/Basic
Sep 2026
From$109*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$109*
Seen: 14 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $128
cmp-daily-histogram-bars-legend-max-price-aria-label $494
Displaying fares for August-2026
  • HOU–STL, 08/03/2026: From $494
    03

    Mon

    AUG

  • HOU–STL, 08/04/2026: From $494
    04

    Tue

  • HOU–STL, 08/05/2026: From $494
    05

    Wed

  • HOU–STL, 08/06/2026: From $494
    06

    Thu

  • HOU–STL, 08/07/2026: From $494
    07

    Fri

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

    Sat

  • HOU–STL, 08/09/2026: From $386
    09

    Sun

  • HOU–STL, 08/10/2026: From $386
    10

    Mon

  • HOU–STL, 08/11/2026: From $386
    11

    Tue

  • HOU–STL, 08/12/2026: From $386
    12

    Wed

  • HOU–STL, 08/13/2026: From $386
    13

    Thu

  • HOU–STL, 08/14/2026: From $386
    14

    Fri

  • HOU–STL, 08/15/2026: From $386
    15

    Sat

  • HOU–STL, 08/16/2026: From $247
    16

    Sun

  • HOU–STL, 08/17/2026: From $247
    17

    Mon

  • HOU–STL, 08/18/2026: From $247
    18

    Tue

  • HOU–STL, 08/19/2026: From $247
    19

    Wed

  • HOU–STL, 08/20/2026: From $247
    20

    Thu

  • HOU–STL, 08/21/2026: From $247
    21

    Fri

  • HOU–STL, 08/22/2026: From $247
    22

    Sat

  • HOU–STL, 08/23/2026: From $169
    23

    Sun

  • HOU–STL, 08/24/2026: From $128
    24

    Mon

  • HOU–STL, 08/25/2026: From $128
    25

    Tue

  • HOU–STL, 08/26/2026: From $128
    26

    Wed

  • HOU–STL, 08/27/2026: From $128
    27

    Thu

  • HOU–STL, 08/28/2026: From $139
    28

    Fri

  • HOU–STL, 08/29/2026: From $128
    29

    Sat

  • HOU–STL, 08/30/2026: From $169
    30

    Sun

  • HOU–STL, 08/31/2026: From $128
    31

    Mon

  • HOU–STL, 09/01/2026: From $128
    01

    Tue

    SEP

  • HOU–STL, 09/02/2026: From $128
    02

    Wed

    • Range$128-$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:
    William P. Hobby Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    1 hour 56 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 Houston (Hobby) to St. Louis is 1 hour 56 minutes.
    There are 156 weekly flights from Houston (Hobby) to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Houston (Hobby) to St. Louis 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Houston (Hobby) to St. Louis 3 times per day on Saturdays and 5 times per day on Sundays.
    To find the lowest fares by day and time to fly Houston (Hobby) to St. Louis with Southwest, check out our Low Fare Calendar.
    You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
    Yes! Flights from Houston (Hobby) to St. Louis—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.

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