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

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Low fares from Austin to Seattle/Tacoma

$

Austin (AUS)to

Seattle/Tacoma (SEA)
Depart: 12/15/2026

One-way

Basic

From
$119
Seen: 12 hrs ago

Austin (AUS)to

Seattle/Tacoma (SEA)
Depart: 12/02/2026

One-way

Basic

From
$119
Seen: 6 hrs ago

Austin (AUS)to

Seattle/Tacoma (SEA)
Depart: 12/16/2026

One-way

Basic

From
$119
Seen: 4 hrs ago

Austin (AUS)to

Seattle/Tacoma (SEA)
Depart: 01/13/2027

One-way

Basic

From
$129
Seen: 4 hrs ago

Austin (AUS)to

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

One-way

Basic

From
$129
Seen: 4 minutes ago

Austin (AUS)to

Seattle/Tacoma (SEA)
Depart: 01/27/2027

One-way

Basic

From
$129
Seen: 21 hrs ago

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Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

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Explore flights from Austin to Seattle/Tacoma

Oct 2026
From$384*
Seen: 15 hrs ago
One Way/Basic
Nov 2026
From$133*
Seen: 22 hrs ago
One Way/Basic
Dec 2026
From$119*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $133
cmp-daily-histogram-bars-legend-max-price-aria-label $479
Displaying fares for October-2026
  • AUS–SEA, 10/24/2026: From $479
    24

    Sat

    OCT

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

    Sun

  • AUS–SEA: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

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

    Tue

  • AUS–SEA, 10/28/2026: From $479
    28

    Wed

  • AUS–SEA, 10/29/2026: From $479
    29

    Thu

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

    Fri

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

    Sat

  • AUS–SEA, 11/01/2026: From $394
    01

    Sun

    NOV

  • AUS–SEA, 11/02/2026: From $384
    02

    Mon

  • AUS–SEA, 11/03/2026: From $384
    03

    Tue

  • AUS–SEA, 11/04/2026: From $384
    04

    Wed

  • AUS–SEA, 11/05/2026: From $384
    05

    Thu

  • AUS–SEA, 11/06/2026: From $259
    06

    Fri

  • AUS–SEA, 11/07/2026: From $259
    07

    Sat

  • AUS–SEA, 11/08/2026: From $269
    08

    Sun

  • AUS–SEA, 11/09/2026: From $143
    09

    Mon

  • AUS–SEA, 11/10/2026: From $143
    10

    Tue

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

    Wed

  • AUS–SEA, 11/12/2026: From $171
    12

    Thu

  • AUS–SEA, 11/13/2026: From $133
    13

    Fri

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

    Sat

  • AUS–SEA, 11/15/2026: From $143
    15

    Sun

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

    Mon

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

    Tue

  • AUS–SEA, 11/18/2026: From $143
    18

    Wed

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

    Thu

  • AUS–SEA, 11/20/2026: From $196
    20

    Fri

  • AUS–SEA, 11/21/2026: From $244
    21

    Sat

  • AUS–SEA, 11/22/2026: From $239
    22

    Sun

  • AUS–SEA, 11/23/2026: From $147
    23

    Mon

    • Range$133-$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:
    Austin-Bergstrom International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    1770 miles

    Questions we hear the most

    There are 143 weekly flights from Austin to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Austin 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 Austin 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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