Southwest® flights from Philadelphia to Austin from $161

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Low fares from Philadelphia to Austin

$

Philadelphia (PHL)to

Austin (AUS)
Depart: 12/02/2026

One-way

Basic

From
$161
Seen: 15 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 11/21/2026

One-way

Basic

From
$161
Seen: 8 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 12/09/2026

One-way

Basic

From
$161
Seen: 18 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 12/01/2026

One-way

Basic

From
$161
Seen: 4 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 12/30/2026

One-way

Basic

From
$167
Seen: 3 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 11/10/2026

One-way

Basic

From
$171
Seen: 21 hrs ago

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Explore flights from Philadelphia to Austin

Oct 2026
From$268*
Seen: 6 hrs ago
One Way/Basic
Nov 2026
From$161*
Seen: 8 hrs ago
One Way/Basic
Dec 2026
From$161*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $161
cmp-daily-histogram-bars-legend-max-price-aria-label $333
Displaying fares for October-2026
  • PHL–AUS, 10/23/2026: From $333
    23

    Fri

    OCT

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

    Sat

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

    Sun

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

    Mon

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

    Tue

  • PHL–AUS, 10/28/2026: From $268
    28

    Wed

  • PHL–AUS, 10/29/2026: From $333
    29

    Thu

  • PHL–AUS, 10/30/2026: From $333
    30

    Fri

  • PHL–AUS, 10/31/2026: From $268
    31

    Sat

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

    Sun

    NOV

  • PHL–AUS, 11/02/2026: From $333
    02

    Mon

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

    Tue

  • PHL–AUS, 11/04/2026: From $268
    04

    Wed

  • PHL–AUS, 11/05/2026: From $333
    05

    Thu

  • PHL–AUS, 11/06/2026: From $333
    06

    Fri

  • PHL–AUS, 11/07/2026: From $263
    07

    Sat

  • PHL–AUS, 11/08/2026: From $333
    08

    Sun

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

    Mon

  • PHL–AUS, 11/10/2026: From $171
    10

    Tue

  • PHL–AUS, 11/11/2026: From $176
    11

    Wed

  • PHL–AUS, 11/12/2026: From $176
    12

    Thu

  • PHL–AUS, 11/13/2026: From $176
    13

    Fri

  • PHL–AUS, 11/14/2026: From $171
    14

    Sat

  • PHL–AUS, 11/15/2026: From $176
    15

    Sun

  • PHL–AUS, 11/16/2026: From $326
    16

    Mon

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

    Tue

  • PHL–AUS, 11/18/2026: From $171
    18

    Wed

  • PHL–AUS, 11/19/2026: From $326
    19

    Thu

  • PHL–AUS, 11/20/2026: From $266
    20

    Fri

  • PHL–AUS, 11/21/2026: From $161
    21

    Sat

  • PHL–AUS, 11/22/2026: From $176
    22

    Sun

    • Range$161-$333

    *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:
    Philadelphia International Airport
    Arriving at:
    Austin-Bergstrom International Airport
    Distance:
    1430 miles

    Questions we hear the most

    There are 136 weekly flights from Philadelphia to Austin on Southwest Airlines.
    To find the lowest fares by day and time to fly Philadelphia 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 Philadelphia 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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