Southwest® flights from Seattle/Tacoma to Austin from $119

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Low fares from Seattle/Tacoma to Austin

$

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 11/18/2026

One-way

Basic

From
$119
Seen: 9 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/15/2026

One-way

Basic

From
$119
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 01/26/2027

One-way

Basic

From
$129
Seen: 5 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 12/16/2026

One-way

Basic

From
$129
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 01/13/2027

One-way

Basic

From
$129
Seen: 5 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 01/19/2027

One-way

Basic

From
$129
Seen: 7 hrs ago

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Explore flights from Seattle/Tacoma to Austin

Oct 2026
From$384*
Seen: 12 hrs ago
One Way/Basic
Nov 2026
From$119*
Seen: 9 hrs ago
One Way/Basic
Dec 2026
From$119*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $479
Displaying fares for October-2026
  • SEA–AUS, 10/20/2026: From $479
    20

    Tue

    OCT

  • SEA–AUS, 10/21/2026: From $479
    21

    Wed

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

    Thu

  • SEA–AUS, 10/23/2026: From $479
    23

    Fri

  • SEA–AUS, 10/24/2026: From $479
    24

    Sat

  • SEA–AUS, 10/25/2026: From $479
    25

    Sun

  • SEA–AUS, 10/26/2026: From $384
    26

    Mon

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

    Tue

  • SEA–AUS, 10/28/2026: From $384
    28

    Wed

  • SEA–AUS, 10/29/2026: From $384
    29

    Thu

  • SEA–AUS, 10/30/2026: From $384
    30

    Fri

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • SEA–AUS, 11/01/2026: From $384
    01

    Sun

    NOV

  • SEA–AUS, 11/02/2026: From $259
    02

    Mon

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    03

    Tue

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

    Wed

  • SEA–AUS, 11/05/2026: From $259
    05

    Thu

  • SEA–AUS, 11/06/2026: From $269
    06

    Fri

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

    Sat

  • SEA–AUS, 11/08/2026: From $259
    08

    Sun

  • SEA–AUS, 11/09/2026: From $148
    09

    Mon

  • SEA–AUS, 11/10/2026: From $133
    10

    Tue

  • SEA–AUS, 11/11/2026: From $143
    11

    Wed

  • SEA–AUS, 11/12/2026: From $153
    12

    Thu

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

    Fri

  • SEA–AUS, 11/14/2026: From $133
    14

    Sat

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

    Sun

  • SEA–AUS, 11/16/2026: From $138
    16

    Mon

  • SEA–AUS, 11/17/2026: From $133
    17

    Tue

  • SEA–AUS, 11/18/2026: From $119
    18

    Wed

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

    Thu

    • Range$119-$479

    *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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