Southwest® flights from Philadelphia to San Diego from $192

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Low fares from Philadelphia to San Diego

$

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/02/2026

One-way

Basic

From
$192
Seen: 2 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 12/17/2026

One-way

Basic

From
$197
Seen: 23 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/18/2026

One-way

Basic

From
$197
Seen: 3 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 12/14/2026

One-way

Basic

From
$197
Seen: 2 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 10/05/2026

One-way

Basic

From
$197
Seen: 17 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 09/29/2026

One-way

Basic

From
$197
Seen: 21 hrs ago

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Explore flights from Philadelphia to San Diego

Sep 2026
From$197*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$197*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$192*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $197
cmp-daily-histogram-bars-legend-max-price-aria-label $318
Displaying fares for September-2026
  • PHL–SAN, 09/09/2026: From $266
    09

    Wed

    SEP

  • PHL–SAN, 09/10/2026: From $318
    10

    Thu

  • PHL–SAN, 09/11/2026: From $318
    11

    Fri

  • PHL–SAN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • PHL–SAN, 09/13/2026: From $318
    13

    Sun

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

    Mon

  • PHL–SAN, 09/15/2026: From $266
    15

    Tue

  • PHL–SAN, 09/16/2026: From $266
    16

    Wed

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

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • PHL–SAN: cmp-view-offers-disclaimer. Find Offers
    22

    Tue

  • PHL–SAN, 09/23/2026: From $266
    23

    Wed

  • PHL–SAN, 09/24/2026: From $314
    24

    Thu

  • PHL–SAN, 09/25/2026: From $314
    25

    Fri

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

    Sat

  • PHL–SAN, 09/27/2026: From $314
    27

    Sun

  • PHL–SAN, 09/28/2026: From $314
    28

    Mon

  • PHL–SAN, 09/29/2026: From $197
    29

    Tue

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

    Wed

  • PHL–SAN, 10/01/2026: From $284
    01

    Thu

    OCT

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

    Fri

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

    Sat

  • PHL–SAN, 10/04/2026: From $284
    04

    Sun

  • PHL–SAN, 10/05/2026: From $197
    05

    Mon

  • PHL–SAN, 10/06/2026: From $197
    06

    Tue

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

    Wed

  • PHL–SAN, 10/08/2026: From $284
    08

    Thu

    • Range$197-$318

    *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 Diego International Airport
    Distance:
    2370 miles

    Route Information

    142† 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 142 weekly flights from Philadelphia to San Diego on Southwest Airlines.
    To find the lowest fares by day and time to fly Philadelphia to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Philadelphia to San Diego—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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