Southwest® flights from Philadelphia to San Diego from $199

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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
$199
Seen: 9 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/03/2026

One-way

Basic

From
$204
Seen: 21 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 12/16/2026

One-way

Basic

From
$204
Seen: 18 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 12/22/2026

One-way

Basic

From
$204
Seen: 10 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/16/2026

One-way

Basic

From
$204
Seen: 12 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 12/07/2026

One-way

Basic

From
$204
Seen: 6 hrs ago

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Explore flights from Philadelphia to San Diego

Sep 2026
From$276*
Seen: 7 hrs ago
One Way/Basic
Oct 2026
From$204*
Seen: 6 hrs ago
One Way/Basic
Nov 2026
From$199*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $204
cmp-daily-histogram-bars-legend-max-price-aria-label $333
Displaying fares for September-2026
  • PHL–SAN, 09/30/2026: From $276
    30

    Wed

    SEP

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

    Thu

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

    Fri

  • PHL–SAN, 10/03/2026: From $220
    03

    Sat

  • PHL–SAN, 10/04/2026: From $328
    04

    Sun

  • PHL–SAN, 10/05/2026: From $328
    05

    Mon

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

    Tue

  • PHL–SAN, 10/07/2026: From $220
    07

    Wed

  • PHL–SAN: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

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

    Fri

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

    Sat

  • PHL–SAN, 10/11/2026: From $333
    11

    Sun

  • PHL–SAN, 10/12/2026: From $328
    12

    Mon

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

    Tue

  • PHL–SAN, 10/14/2026: From $215
    14

    Wed

  • PHL–SAN: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

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

    Fri

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

    Sat

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

    Sun

  • PHL–SAN, 10/19/2026: From $204
    19

    Mon

  • PHL–SAN, 10/20/2026: From $204
    20

    Tue

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

    Wed

  • PHL–SAN, 10/22/2026: From $204
    22

    Thu

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

    Fri

  • PHL–SAN, 10/24/2026: From $204
    24

    Sat

  • PHL–SAN, 10/25/2026: From $234
    25

    Sun

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

    Mon

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

    Tue

  • PHL–SAN, 10/28/2026: From $204
    28

    Wed

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

    Thu

    • Range$204-$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:
    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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