Southwest® flights from Denver to San Antonio from $105

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Low fares from Denver to San Antonio

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Denver (DEN)to

San Antonio (SAT)
Depart: 09/16/2026

One-way

Basic

From
$105
Seen: 17 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 10/20/2026

One-way

Basic

From
$105
Seen: 10 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 09/23/2026

One-way

Basic

From
$105
Seen: 6 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 09/29/2026

One-way

Basic

From
$105
Seen: 1 hour ago

Denver (DEN)to

San Antonio (SAT)
Depart: 11/03/2026

One-way

Basic

From
$105
Seen: 16 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 10/10/2026

One-way

Basic

From
$105
Seen: 21 hrs ago

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Explore flights from Denver to San Antonio

Aug 2026
From$435*
Seen: 13 hrs ago
One Way/Basic
Sep 2026
From$105*
Seen: 17 hrs ago
One Way/Basic
Oct 2026
From$105*
Seen: 15 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $105
cmp-daily-histogram-bars-legend-max-price-aria-label $494
Displaying fares for August-2026
  • DEN–SAT, 08/21/2026: From $494
    21

    Fri

    AUG

  • DEN–SAT, 08/22/2026: From $494
    22

    Sat

  • DEN–SAT, 08/23/2026: From $494
    23

    Sun

  • DEN–SAT, 08/24/2026: From $494
    24

    Mon

  • DEN–SAT, 08/25/2026: From $494
    25

    Tue

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

  • DEN–SAT, 08/27/2026: From $435
    27

    Thu

  • DEN–SAT, 08/28/2026: From $435
    28

    Fri

  • DEN–SAT, 08/29/2026: From $435
    29

    Sat

  • DEN–SAT, 08/30/2026: From $435
    30

    Sun

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

  • DEN–SAT, 09/01/2026: From $435
    01

    Tue

    SEP

  • DEN–SAT, 09/02/2026: From $435
    02

    Wed

  • DEN–SAT, 09/03/2026: From $270
    03

    Thu

  • DEN–SAT, 09/04/2026: From $270
    04

    Fri

  • DEN–SAT, 09/05/2026: From $270
    05

    Sat

  • DEN–SAT, 09/06/2026: From $280
    06

    Sun

  • DEN–SAT, 09/07/2026: From $326
    07

    Mon

  • DEN–SAT, 09/08/2026: From $270
    08

    Tue

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • DEN–SAT, 09/10/2026: From $125
    10

    Thu

  • DEN–SAT, 09/11/2026: From $125
    11

    Fri

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • DEN–SAT, 09/14/2026: From $135
    14

    Mon

  • DEN–SAT, 09/15/2026: From $105
    15

    Tue

  • DEN–SAT, 09/16/2026: From $105
    16

    Wed

  • DEN–SAT, 09/17/2026: From $125
    17

    Thu

  • DEN–SAT, 09/18/2026: From $125
    18

    Fri

  • DEN–SAT, 09/19/2026: From $105
    19

    Sat

  • DEN–SAT, 09/20/2026: From $246
    20

    Sun

    • Range$105-$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:
    Denver International Airport
    Arriving at:
    San Antonio International Airport
    Average flight time:
    2 hours 7 minutes
    Distance:
    794 miles

    Route Information

    156† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 3‡ Nonstop flights on Saturday
    • 4‡ 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 Denver to San Antonio is 2 hours 7 minutes.
    There are 156 weekly flights from Denver to San Antonio on Southwest Airlines.
    Yes, Southwest flies nonstop from Denver to San Antonio 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Denver to San Antonio 3 times per day on Saturdays and 4 times per day on Sundays.
    To find the lowest fares by day and time to fly Denver to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Denver to San Antonio—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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