Southwest® flights from Denver to San Antonio from $99

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Low fares from Denver to San Antonio

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Denver (DEN)to

San Antonio (SAT)
Depart: 09/02/2026

One-way

Basic

From
$99
Seen: 10 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$99
Seen: 10 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 10/14/2026

One-way

Basic

From
$99
Seen: 11 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$99
Seen: 21 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$99
Seen: 16 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 08/22/2026

One-way

Basic

From
$99
Seen: 1 hour ago

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Explore flights from Denver to San Antonio

Aug 2026
From$99*
Seen: 1 hour ago
One Way/Basic
Sep 2026
From$99*
Seen: 23 hrs ago
One Way/Basic
Oct 2026
From$99*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $99
cmp-daily-histogram-bars-legend-max-price-aria-label $394
Displaying fares for August-2026
  • DEN–SAT, 08/01/2026: From $394
    01

    Sat

    AUG

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

  • DEN–SAT, 08/03/2026: From $394
    03

    Mon

  • DEN–SAT, 08/04/2026: From $394
    04

    Tue

  • DEN–SAT, 08/05/2026: From $394
    05

    Wed

  • DEN–SAT, 08/06/2026: From $394
    06

    Thu

  • DEN–SAT, 08/07/2026: From $394
    07

    Fri

  • DEN–SAT, 08/08/2026: From $394
    08

    Sat

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

    Sun

  • DEN–SAT, 08/10/2026: From $394
    10

    Mon

  • DEN–SAT, 08/11/2026: From $394
    11

    Tue

  • DEN–SAT, 08/12/2026: From $394
    12

    Wed

  • DEN–SAT, 08/13/2026: From $394
    13

    Thu

  • DEN–SAT, 08/14/2026: From $270
    14

    Fri

  • DEN–SAT, 08/15/2026: From $270
    15

    Sat

  • DEN–SAT, 08/16/2026: From $270
    16

    Sun

  • DEN–SAT, 08/17/2026: From $270
    17

    Mon

  • DEN–SAT, 08/18/2026: From $270
    18

    Tue

  • DEN–SAT, 08/19/2026: From $270
    19

    Wed

  • DEN–SAT, 08/20/2026: From $270
    20

    Thu

  • DEN–SAT, 08/21/2026: From $119
    21

    Fri

  • DEN–SAT, 08/22/2026: From $99
    22

    Sat

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • DEN–SAT, 08/25/2026: From $99
    25

    Tue

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

    Wed

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

  • DEN–SAT, 08/28/2026: From $119
    28

    Fri

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • DEN–SAT, 08/30/2026: From $236
    30

    Sun

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

    Mon

    • Range$99-$394

    *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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