Southwest® flights from Philadelphia to San Antonio from $219

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Low fares from Philadelphia to San Antonio

$

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 12/08/2026

One-way

Basic

From
$219
Seen: 18 hrs ago

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 01/12/2027

One-way

Basic

From
$219
Seen: 4 hrs ago

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 01/13/2027

One-way

Basic

From
$219
Seen: 2 hrs ago

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 02/17/2027

One-way

Basic

From
$219
Seen: 12 hrs ago

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 12/09/2026

One-way

Basic

From
$219
Seen: 9 hrs ago

Philadelphia (PHL)to

San Antonio (SAT)
Depart: 02/03/2027

One-way

Basic

From
$219
Seen: 9 hrs ago

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Explore flights from Philadelphia to San Antonio

Nov 2026
From$326*
Seen: 10 hrs ago
One Way/Basic
Dec 2026
From$219*
Seen: 9 hrs ago
One Way/Basic
Jan 2027
From$219*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $219
cmp-daily-histogram-bars-legend-max-price-aria-label $405
Displaying fares for November-2026
  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

    NOV

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

    Mon

  • PHL–SAT, 11/17/2026: From $326
    17

    Tue

  • PHL–SAT, 11/18/2026: From $326
    18

    Wed

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

    Thu

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

  • PHL–SAT, 11/21/2026: From $326
    21

    Sat

  • PHL–SAT, 11/22/2026: From $405
    22

    Sun

  • PHL–SAT, 11/23/2026: From $405
    23

    Mon

  • PHL–SAT, 11/24/2026: From $326
    24

    Tue

  • PHL–SAT, 11/25/2026: From $326
    25

    Wed

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

    Thu

  • PHL–SAT, 11/27/2026: From $405
    27

    Fri

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    28

    Sat

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    29

    Sun

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

    Mon

  • PHL–SAT, 12/01/2026: From $326
    01

    Tue

    DEC

  • PHL–SAT, 12/02/2026: From $326
    02

    Wed

  • PHL–SAT, 12/03/2026: From $366
    03

    Thu

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    04

    Fri

  • PHL–SAT, 12/05/2026: From $239
    05

    Sat

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • PHL–SAT, 12/08/2026: From $219
    08

    Tue

  • PHL–SAT, 12/09/2026: From $219
    09

    Wed

  • PHL–SAT, 12/10/2026: From $239
    10

    Thu

  • PHL–SAT: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

  • PHL–SAT, 12/12/2026: From $239
    12

    Sat

  • PHL–SAT, 12/13/2026: From $336
    13

    Sun

  • PHL–SAT, 12/14/2026: From $239
    14

    Mon

    • Range$219-$405

    *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:
    San Antonio International Airport
    Distance:
    1496 miles

    Questions we hear the most

    There are 124 weekly flights from Philadelphia to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Philadelphia to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Philadelphia to San Antonio—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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