Southwest® flights from Philadelphia to Austin from $189

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Low fares from Philadelphia to Austin

$

Philadelphia (PHL)to

Austin (AUS)
Depart: 12/10/2026

One-way

Basic

From
$189
Seen: 17 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 10/20/2026

One-way

Basic

From
$189
Seen: 12 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 10/19/2026

One-way

Basic

From
$189
Seen: 5 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 10/29/2026

One-way

Basic

From
$189
Seen: 22 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 11/05/2026

One-way

Basic

From
$189
Seen: 22 hrs ago

Philadelphia (PHL)to

Austin (AUS)
Depart: 10/06/2026

One-way

Basic

From
$189
Seen: 3 hrs ago

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Explore flights from Philadelphia to Austin

Sep 2026
From$214*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$189*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$189*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $713
Displaying fares for September-2026
  • PHL–AUS, 09/11/2026: From $219
    11

    Fri

    SEP

  • PHL–AUS, 09/12/2026: From $224
    12

    Sat

  • PHL–AUS, 09/13/2026: From $425
    13

    Sun

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

    Mon

  • PHL–AUS, 09/15/2026: From $219
    15

    Tue

  • PHL–AUS, 09/16/2026: From $219
    16

    Wed

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

    Thu

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

    Fri

  • PHL–AUS, 09/19/2026: From $420
    19

    Sat

  • PHL–AUS, 09/20/2026: From $420
    20

    Sun

  • PHL–AUS, 09/21/2026: From $713
    21

    Mon

  • PHL–AUS, 09/22/2026: From $219
    22

    Tue

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    23

    Wed

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

    Thu

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

    Fri

  • PHL–AUS, 09/26/2026: From $285
    26

    Sat

  • PHL–AUS, 09/27/2026: From $328
    27

    Sun

  • PHL–AUS, 09/28/2026: From $369
    28

    Mon

  • PHL–AUS, 09/29/2026: From $214
    29

    Tue

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

    Wed

  • PHL–AUS, 10/01/2026: From $328
    01

    Thu

    OCT

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

    Fri

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

    Sat

  • PHL–AUS, 10/04/2026: From $214
    04

    Sun

  • PHL–AUS, 10/05/2026: From $219
    05

    Mon

  • PHL–AUS, 10/06/2026: From $189
    06

    Tue

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    07

    Wed

  • PHL–AUS, 10/08/2026: From $253
    08

    Thu

  • PHL–AUS, 10/09/2026: From $316
    09

    Fri

  • PHL–AUS: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

    • Range$189-$713

    *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

    Route Information

    136† 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 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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