Southwest® flights from Portland, ME to Austin from $140

Promo Code

Low fares from Portland, ME to Austin

$

Portland, ME (PWM)to

Austin (AUS)
Depart: 11/10/2026

One-way

Basic

From
$140
Seen: 6 hrs ago

Portland, ME (PWM)to

Austin (AUS)
Depart: 12/02/2026

One-way

Basic

From
$140
Seen: 1 hour ago

Portland, ME (PWM)to

Austin (AUS)
Depart: 12/03/2026

One-way

Basic

From
$140
Seen: 2 hrs ago

Portland, ME (PWM)to

Austin (AUS)
Depart: 12/09/2026

One-way

Basic

From
$140
Seen: 21 hrs ago

Portland, ME (PWM)to

Austin (AUS)
Depart: 11/19/2026

One-way

Basic

From
$145
Seen: 5 hrs ago

Portland, ME (PWM)to

Austin (AUS)
Depart: 12/11/2026

One-way

Basic

From
$160
Seen: 23 hrs ago

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Explore flights from Portland, ME to Austin

Oct 2026
From$311*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$140*
Seen: 6 hrs ago
One Way/Basic
Dec 2026
From$140*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $140
cmp-daily-histogram-bars-legend-max-price-aria-label $391
Displaying fares for October-2026
  • PWM–AUS, 10/20/2026: From $311
    20

    Tue

    OCT

  • PWM–AUS, 10/21/2026: From $311
    21

    Wed

  • PWM–AUS, 10/22/2026: From $391
    22

    Thu

  • PWM–AUS, 10/23/2026: From $391
    23

    Fri

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

    Sat

  • PWM–AUS, 10/25/2026: From $391
    25

    Sun

  • PWM–AUS, 10/26/2026: From $391
    26

    Mon

  • PWM–AUS, 10/27/2026: From $311
    27

    Tue

  • PWM–AUS, 10/28/2026: From $311
    28

    Wed

  • PWM–AUS, 10/29/2026: From $391
    29

    Thu

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

    Fri

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

    Sat

  • PWM–AUS: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

  • PWM–AUS, 11/02/2026: From $319
    02

    Mon

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

    Tue

  • PWM–AUS, 11/04/2026: From $311
    04

    Wed

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

    Thu

  • PWM–AUS, 11/06/2026: From $319
    06

    Fri

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

    Sat

  • PWM–AUS: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

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

    Mon

  • PWM–AUS, 11/10/2026: From $140
    10

    Tue

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

    Wed

  • PWM–AUS: cmp-view-offers-disclaimer. Find Offers
    12

    Thu

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

    Fri

  • PWM–AUS: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

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

    Sun

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

    Mon

  • PWM–AUS: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

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

    Wed

  • PWM–AUS, 11/19/2026: From $145
    19

    Thu

    • Range$140-$391

    *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:
    Portland International Jetport
    Arriving at:
    Austin-Bergstrom International Airport
    Distance:
    1764 miles

    Questions we hear the most

    There are 85 weekly flights from Portland, ME to Austin on Southwest Airlines.
    To find the lowest fares by day and time to fly Portland, ME 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 Portland, ME 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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