Southwest® flights from Seattle/Tacoma to Austin from $149

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Low fares from Seattle/Tacoma to Austin

$

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 11/12/2026

One-way

Basic

From
$149
Seen: 10 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 10/27/2026

One-way

Basic

From
$149
Seen: 6 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 11/24/2026

One-way

Basic

From
$149
Seen: 1 hour ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 10/24/2026

One-way

Basic

From
$149
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 11/18/2026

One-way

Basic

From
$149
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Austin (AUS)
Depart: 11/10/2026

One-way

Basic

From
$149
Seen: 18 hrs ago

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Explore flights from Seattle/Tacoma to Austin

Oct 2026
From$149*
Seen: 6 hrs ago
One Way/Basic
Nov 2026
From$149*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$149*
Seen: 1 hour ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $149
cmp-daily-histogram-bars-legend-max-price-aria-label $479
Displaying fares for October-2026
  • SEA–AUS, 10/01/2026: From $479
    01

    Thu

    OCT

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

    Fri

  • SEA–AUS, 10/03/2026: From $469
    03

    Sat

  • SEA–AUS, 10/04/2026: From $479
    04

    Sun

  • SEA–AUS, 10/05/2026: From $469
    05

    Mon

  • SEA–AUS, 10/06/2026: From $469
    06

    Tue

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

    Wed

  • SEA–AUS, 10/08/2026: From $384
    08

    Thu

  • SEA–AUS, 10/09/2026: From $374
    09

    Fri

  • SEA–AUS, 10/10/2026: From $374
    10

    Sat

  • SEA–AUS, 10/11/2026: From $312
    11

    Sun

  • SEA–AUS, 10/12/2026: From $389
    12

    Mon

  • SEA–AUS, 10/13/2026: From $384
    13

    Tue

  • SEA–AUS, 10/14/2026: From $209
    14

    Wed

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

    Thu

  • SEA–AUS, 10/16/2026: From $259
    16

    Fri

  • SEA–AUS, 10/17/2026: From $179
    17

    Sat

  • SEA–AUS: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

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

    Mon

  • SEA–AUS, 10/20/2026: From $155
    20

    Tue

  • SEA–AUS, 10/21/2026: From $155
    21

    Wed

  • SEA–AUS, 10/22/2026: From $272
    22

    Thu

  • SEA–AUS, 10/23/2026: From $229
    23

    Fri

  • SEA–AUS, 10/24/2026: From $149
    24

    Sat

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

    Sun

  • SEA–AUS, 10/26/2026: From $159
    26

    Mon

  • SEA–AUS, 10/27/2026: From $149
    27

    Tue

  • SEA–AUS, 10/28/2026: From $149
    28

    Wed

  • SEA–AUS, 10/29/2026: From $149
    29

    Thu

  • SEA–AUS, 10/30/2026: From $162
    30

    Fri

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

    Sat

    • Range$149-$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

    Route Information

    145† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    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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