Southwest® flights from Austin to Philadelphia from $174

Promo Code

Low fares from Austin to Philadelphia

$

Austin (AUS)to

Philadelphia (PHL)
Depart: 10/03/2026

One-way

Basic

From
$174
Seen: 5 hrs ago

Austin (AUS)to

Philadelphia (PHL)
Depart: 09/11/2026

One-way

Basic

From
$185
Seen: 22 hrs ago

Austin (AUS)to

Philadelphia (PHL)
Depart: 10/30/2026

One-way

Basic

From
$185
Seen: 20 hrs ago

Austin (AUS)to

Philadelphia (PHL)
Depart: 10/03/2026

One-way

Choice

From
$210
Seen: 5 hrs ago

Austin (AUS)to

Philadelphia (PHL)
Depart: 08/29/2026

One-way

Basic

From
$212
Seen: 22 hrs ago

Austin (AUS)to

Philadelphia (PHL)
Depart: 08/26/2026

One-way

Basic

From
$212
Seen: 19 hrs ago

Looking for more low-fare flights?

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.

Find low fares

Explore flights from Austin to Philadelphia

Aug 2026
From$212*
Seen: 22 hrs ago
One Way/Basic
Sep 2026
From$185*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$174*
Seen: 5 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $212
cmp-daily-histogram-bars-legend-max-price-aria-label $338
Displaying fares for August-2026
  • AUS–PHL, 08/02/2026: From $303
    02

    Sun

    AUG

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

    Mon

  • AUS–PHL, 08/04/2026: From $238
    04

    Tue

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

    Wed

  • AUS–PHL, 08/06/2026: From $338
    06

    Thu

  • AUS–PHL, 08/07/2026: From $303
    07

    Fri

  • AUS–PHL, 08/08/2026: From $238
    08

    Sat

  • AUS–PHL, 08/09/2026: From $303
    09

    Sun

  • AUS–PHL, 08/10/2026: From $303
    10

    Mon

  • AUS–PHL, 08/11/2026: From $238
    11

    Tue

  • AUS–PHL, 08/12/2026: From $238
    12

    Wed

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

    Thu

  • AUS–PHL, 08/14/2026: From $303
    14

    Fri

  • AUS–PHL, 08/15/2026: From $238
    15

    Sat

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

    Sun

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

    Mon

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

    Tue

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

    Wed

  • AUS–PHL, 08/20/2026: From $303
    20

    Thu

  • AUS–PHL: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

  • AUS–PHL, 08/22/2026: From $212
    22

    Sat

  • AUS–PHL: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

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

    Mon

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

    Tue

  • AUS–PHL, 08/26/2026: From $212
    26

    Wed

  • AUS–PHL, 08/27/2026: From $212
    27

    Thu

  • AUS–PHL, 08/28/2026: From $248
    28

    Fri

  • AUS–PHL, 08/29/2026: From $212
    29

    Sat

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

    Sun

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

    Mon

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

    Tue

    SEP

    • Range$212-$338

    *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:
    Philadelphia International Airport
    Distance:
    1430 miles

    Route Information

    141† 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 141 weekly flights from Austin to Philadelphia on Southwest Airlines.
    To find the lowest fares by day and time to fly Austin to Philadelphia with Southwest, check out our Low Fare Calendar.
    You can rent a car at Philadelphia International Airport book yours with your flight.
    Yes! Flights from Austin to Philadelphia—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Austin