Southwest® flights from Seattle/Tacoma to Austin from $104

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Low fares from Seattle/Tacoma to Austin

$

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/12/2026

One-way

Basic

From
$104
Seen: 15 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/04/2026

One-way

Basic

From
$104
Seen: 15 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/14/2026

One-way

Basic

From
$104
Seen: 9 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/13/2026

One-way

Basic

From
$104
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/11/2026

One-way

Basic

From
$104
Seen: 13 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/03/2026

One-way

Basic

From
$104
Seen: 9 hrs ago

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Explore flights from Seattle/Tacoma to Austin

Nov 2026
From$264*
Seen: 10 hrs ago
One Way/Basic
Dec 2026
From$104*
Seen: 15 hrs ago
One Way/Basic
Jan 2027
From$170*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $104
cmp-daily-histogram-bars-legend-max-price-aria-label $518
Displaying fares for November-2026
  • SEA–AUS, 11/10/2026: From $484
    10

    Tue

    NOV

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

    Wed

  • SEA–AUS, 11/12/2026: From $484
    12

    Thu

  • SEA–AUS, 11/13/2026: From $484
    13

    Fri

  • SEA–AUS, 11/14/2026: From $484
    14

    Sat

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

    Sun

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

    Mon

  • SEA–AUS, 11/17/2026: From $389
    17

    Tue

  • SEA–AUS, 11/18/2026: From $389
    18

    Wed

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • SEA–AUS, 11/20/2026: From $389
    20

    Fri

  • SEA–AUS, 11/21/2026: From $389
    21

    Sat

  • SEA–AUS, 11/22/2026: From $389
    22

    Sun

  • SEA–AUS, 11/23/2026: From $264
    23

    Mon

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    24

    Tue

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    25

    Wed

  • SEA–AUS, 11/26/2026: From $305
    26

    Thu

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    27

    Fri

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    28

    Sat

  • SEA–AUS, 11/29/2026: From $518
    29

    Sun

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

    Mon

  • SEA–AUS, 12/01/2026: From $170
    01

    Tue

    DEC

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

    Wed

  • SEA–AUS, 12/03/2026: From $104
    03

    Thu

  • SEA–AUS, 12/04/2026: From $104
    04

    Fri

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

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

    Sun

  • SEA–AUS, 12/07/2026: From $104
    07

    Mon

  • SEA–AUS, 12/08/2026: From $114
    08

    Tue

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

    • Range$104-$518

    *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:
    Austin-Bergstrom International Airport
    Distance:
    1770 miles

    Questions we hear the most

    There are 145 weekly flights from Seattle/Tacoma to Austin on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma to Austin with Southwest, check out our Low Fare Calendar.
    You can rent a car at Austin-Bergstrom International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to Austin—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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