Southwest® flights from Seattle/Tacoma to San Antonio from $164

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Low fares from Seattle/Tacoma to San Antonio

$

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 12/07/2026

One-way

Basic

From
$164
Seen: 18 hrs ago

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 12/15/2026

One-way

Basic

From
$164
Seen: 11 hrs ago

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 12/05/2026

One-way

Basic

From
$164
Seen: 12 hrs ago

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 12/11/2026

One-way

Basic

From
$164
Seen: 6 hrs ago

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 12/09/2026

One-way

Basic

From
$169
Seen: 7 hrs ago

Seattle/Tacoma (SEA)to

San Antonio (SAT)
Depart: 01/17/2027

One-way

Basic

From
$173
Seen: 14 hrs ago

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Explore flights from Seattle/Tacoma to San Antonio

Nov 2026
From$214*
Seen: 9 hrs ago
One Way/Basic
Dec 2026
From$164*
Seen: 12 hrs ago
One Way/Basic
Jan 2027
From$173*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $164
cmp-daily-histogram-bars-legend-max-price-aria-label $360
Displaying fares for November-2026
  • SEA–SAT, 11/11/2026: From $286
    11

    Wed

    NOV

  • SEA–SAT, 11/12/2026: From $332
    12

    Thu

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

    Fri

  • SEA–SAT, 11/14/2026: From $286
    14

    Sat

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • SEA–SAT, 11/17/2026: From $249
    17

    Tue

  • SEA–SAT, 11/18/2026: From $249
    18

    Wed

  • SEA–SAT, 11/19/2026: From $249
    19

    Thu

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

  • SEA–SAT, 11/21/2026: From $249
    21

    Sat

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

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

    Mon

  • SEA–SAT, 11/24/2026: From $285
    24

    Tue

  • SEA–SAT, 11/25/2026: From $285
    25

    Wed

  • SEA–SAT, 11/26/2026: From $280
    26

    Thu

  • SEA–SAT, 11/27/2026: From $214
    27

    Fri

  • SEA–SAT, 11/28/2026: From $254
    28

    Sat

  • SEA–SAT, 11/29/2026: From $360
    29

    Sun

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    30

    Mon

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    DEC

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

    Wed

  • SEA–SAT, 12/03/2026: From $173
    03

    Thu

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    04

    Fri

  • SEA–SAT, 12/05/2026: From $164
    05

    Sat

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

    Sun

  • SEA–SAT, 12/07/2026: From $164
    07

    Mon

  • SEA–SAT: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • SEA–SAT, 12/09/2026: From $169
    09

    Wed

  • SEA–SAT, 12/10/2026: From $173
    10

    Thu

    • Range$164-$360

    *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:
    Seattle/Tacoma International Airport
    Arriving at:
    San Antonio International Airport
    Distance:
    1774 miles

    Questions we hear the most

    There are 119 weekly flights from Seattle/Tacoma to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma 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 Seattle/Tacoma 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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