Southwest® flights from Denver to San Antonio from $115

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Low fares from Denver to San Antonio

$

Denver (DEN)to

San Antonio (SAT)
Depart: 11/18/2026

One-way

Basic

From
$115
Seen: 16 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$115
Seen: 18 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$115
Seen: 4 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$115
Seen: 23 hrs ago

Denver (DEN)to

San Antonio (SAT)
Depart: 11/07/2026

One-way

Basic

From
$115
Seen: 22 hrs ago

Denver (DEN)to

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

One-way

Basic

From
$115
Seen: 16 hrs ago

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Explore flights from Denver to San Antonio

Sep 2026
From$290*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$115*
Seen: 16 hrs ago
One Way/Basic
Nov 2026
From$115*
Seen: 13 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $115
cmp-daily-histogram-bars-legend-max-price-aria-label $514
Displaying fares for September-2026
  • DEN–SAT, 09/12/2026: From $514
    12

    Sat

    SEP

  • DEN–SAT, 09/13/2026: From $514
    13

    Sun

  • DEN–SAT, 09/14/2026: From $514
    14

    Mon

  • DEN–SAT, 09/15/2026: From $514
    15

    Tue

  • DEN–SAT, 09/16/2026: From $514
    16

    Wed

  • DEN–SAT, 09/17/2026: From $514
    17

    Thu

  • DEN–SAT, 09/18/2026: From $455
    18

    Fri

  • DEN–SAT, 09/19/2026: From $455
    19

    Sat

  • DEN–SAT, 09/20/2026: From $465
    20

    Sun

  • DEN–SAT, 09/21/2026: From $455
    21

    Mon

  • DEN–SAT, 09/22/2026: From $455
    22

    Tue

  • DEN–SAT, 09/23/2026: From $455
    23

    Wed

  • DEN–SAT, 09/24/2026: From $455
    24

    Thu

  • DEN–SAT, 09/25/2026: From $290
    25

    Fri

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

    Sat

  • DEN–SAT, 09/27/2026: From $300
    27

    Sun

  • DEN–SAT, 09/28/2026: From $300
    28

    Mon

  • DEN–SAT, 09/29/2026: From $290
    29

    Tue

  • DEN–SAT, 09/30/2026: From $290
    30

    Wed

  • DEN–SAT, 10/01/2026: From $290
    01

    Thu

    OCT

  • DEN–SAT, 10/02/2026: From $135
    02

    Fri

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • DEN–SAT, 10/04/2026: From $266
    04

    Sun

  • DEN–SAT, 10/05/2026: From $135
    05

    Mon

  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • DEN–SAT, 10/07/2026: From $115
    07

    Wed

  • DEN–SAT, 10/08/2026: From $135
    08

    Thu

  • DEN–SAT, 10/09/2026: From $135
    09

    Fri

  • DEN–SAT, 10/10/2026: From $115
    10

    Sat

  • DEN–SAT, 10/11/2026: From $256
    11

    Sun

    • Range$115-$514

    *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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