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

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Low fares from Houston Hobby to St. Louis

$

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 12/22/2026

One-way

Basic

From
$109
Seen: 19 hrs ago

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 01/05/2027

One-way

Basic

From
$109
Seen: 19 hrs ago

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 12/09/2026

One-way

Basic

From
$109
Seen: 20 hrs ago

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 11/19/2026

One-way

Basic

From
$109
Seen: 21 hrs ago

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 11/14/2026

One-way

Basic

From
$109
Seen: 19 hrs ago

Houston Hobby (HOU)to

St. Louis (STL)
Depart: 11/02/2026

One-way

Basic

From
$109
Seen: 16 hrs ago

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Explore flights from Houston Hobby to St. Louis

Oct 2026
From$109*
Seen: 7 hrs ago
One Way/Basic
Nov 2026
From$109*
Seen: 23 hrs ago
One Way/Basic
Dec 2026
From$109*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $444
Displaying fares for October-2026
  • HOU–STL, 10/02/2026: From $444
    02

    Fri

    OCT

  • HOU–STL, 10/03/2026: From $444
    03

    Sat

  • HOU–STL, 10/04/2026: From $444
    04

    Sun

  • HOU–STL, 10/05/2026: From $444
    05

    Mon

  • HOU–STL, 10/06/2026: From $444
    06

    Tue

  • HOU–STL, 10/07/2026: From $444
    07

    Wed

  • HOU–STL, 10/08/2026: From $356
    08

    Thu

  • HOU–STL, 10/09/2026: From $356
    09

    Fri

  • HOU–STL, 10/10/2026: From $356
    10

    Sat

  • HOU–STL, 10/11/2026: From $356
    11

    Sun

  • HOU–STL, 10/12/2026: From $356
    12

    Mon

  • HOU–STL, 10/13/2026: From $356
    13

    Tue

  • HOU–STL, 10/14/2026: From $356
    14

    Wed

  • HOU–STL, 10/15/2026: From $233
    15

    Thu

  • HOU–STL, 10/16/2026: From $233
    16

    Fri

  • HOU–STL, 10/17/2026: From $233
    17

    Sat

  • HOU–STL, 10/18/2026: From $233
    18

    Sun

  • HOU–STL, 10/19/2026: From $233
    19

    Mon

  • HOU–STL, 10/20/2026: From $233
    20

    Tue

  • HOU–STL, 10/21/2026: From $233
    21

    Wed

  • HOU–STL, 10/22/2026: From $233
    22

    Thu

  • HOU–STL, 10/23/2026: From $191
    23

    Fri

  • HOU–STL, 10/24/2026: From $109
    24

    Sat

  • HOU–STL, 10/25/2026: From $220
    25

    Sun

  • HOU–STL, 10/26/2026: From $109
    26

    Mon

  • HOU–STL, 10/27/2026: From $109
    27

    Tue

  • HOU–STL, 10/28/2026: From $191
    28

    Wed

  • HOU–STL, 10/29/2026: From $109
    29

    Thu

  • HOU–STL, 10/30/2026: From $148
    30

    Fri

  • HOU–STL: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • HOU–STL, 11/01/2026: From $220
    01

    Sun

    NOV

    • Range$109-$444

    *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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