Southwest® flights from San Antonio to Seattle/Tacoma from $173

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Low fares from San Antonio to Seattle/Tacoma

$

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 12/03/2026

One-way

Basic

From
$173
Seen: 21 hrs ago

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 01/09/2027

One-way

Basic

From
$173
Seen: 22 hrs ago

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 01/28/2027

One-way

Basic

From
$173
Seen: 11 hrs ago

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 01/15/2027

One-way

Basic

From
$173
Seen: 10 hrs ago

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 01/06/2027

One-way

Basic

From
$173
Seen: 10 hrs ago

San Antonio (SAT)to

Seattle/Tacoma (SEA)
Depart: 12/25/2026

One-way

Basic

From
$173
Seen: 9 hrs ago

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Explore flights from San Antonio to Seattle/Tacoma

Nov 2026
From$209*
Seen: 5 hrs ago
One Way/Basic
Dec 2026
From$173*
Seen: 21 hrs ago
One Way/Basic
Jan 2027
From$173*
Seen: 12 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $173
cmp-daily-histogram-bars-legend-max-price-aria-label $529
Displaying fares for November-2026
  • SAT–SEA, 11/12/2026: From $332
    12

    Thu

    NOV

  • SAT–SEA, 11/13/2026: From $332
    13

    Fri

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

    Sat

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

    Sun

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    16

    Mon

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    17

    Tue

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

    Wed

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

    Thu

  • SAT–SEA, 11/20/2026: From $249
    20

    Fri

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

    Sat

  • SAT–SEA, 11/22/2026: From $249
    22

    Sun

  • SAT–SEA, 11/23/2026: From $249
    23

    Mon

  • SAT–SEA, 11/24/2026: From $249
    24

    Tue

  • SAT–SEA, 11/25/2026: From $209
    25

    Wed

  • SAT–SEA, 11/26/2026: From $209
    26

    Thu

  • SAT–SEA, 11/27/2026: From $260
    27

    Fri

  • SAT–SEA, 11/28/2026: From $480
    28

    Sat

  • SAT–SEA, 11/29/2026: From $529
    29

    Sun

  • SAT–SEA, 11/30/2026: From $329
    30

    Mon

  • SAT–SEA, 12/01/2026: From $209
    01

    Tue

    DEC

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

    Wed

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

    Thu

  • SAT–SEA, 12/04/2026: From $249
    04

    Fri

  • SAT–SEA, 12/05/2026: From $173
    05

    Sat

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

    Sun

  • SAT–SEA: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

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    08

    Tue

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    09

    Wed

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    10

    Thu

  • SAT–SEA: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    • Range$173-$529

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

    Questions we hear the most

    There are 136 weekly flights from San Antonio to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly San Antonio to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from San Antonio to Seattle/Tacoma—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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