Southwest® flights from Philadelphia to San Diego from $184

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Low fares from Philadelphia to San Diego

$

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/05/2026

One-way

Basic

From
$184
Seen: 11 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 11/12/2026

One-way

Basic

From
$184
Seen: 8 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 10/07/2026

One-way

Basic

From
$189
Seen: 6 hrs ago

Philadelphia (PHL)to

San Diego (SAN)
Depart: 09/10/2026

One-way

Basic

From
$189
Seen: 10 hrs ago

Philadelphia (PHL)to

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

One-way

Basic

From
$189
Seen: 13 hrs ago

Philadelphia (PHL)to

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

One-way

Basic

From
$189
Seen: 15 hrs ago

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Explore flights from Philadelphia to San Diego

Aug 2026
From$256*
Seen: 15 hrs ago
One Way/Basic
Sep 2026
From$189*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$189*
Seen: 14 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $308
Displaying fares for August-2026
  • PHL–SAN, 08/21/2026: From $308
    21

    Fri

    AUG

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

    Sat

  • PHL–SAN, 08/23/2026: From $308
    23

    Sun

  • PHL–SAN, 08/24/2026: From $308
    24

    Mon

  • PHL–SAN, 08/25/2026: From $256
    25

    Tue

  • PHL–SAN, 08/26/2026: From $256
    26

    Wed

  • PHL–SAN, 08/27/2026: From $308
    27

    Thu

  • PHL–SAN, 08/28/2026: From $308
    28

    Fri

  • PHL–SAN, 08/29/2026: From $256
    29

    Sat

  • PHL–SAN, 08/30/2026: From $308
    30

    Sun

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

    Mon

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

    Tue

    SEP

  • PHL–SAN, 09/02/2026: From $256
    02

    Wed

  • PHL–SAN, 09/03/2026: From $304
    03

    Thu

  • PHL–SAN, 09/04/2026: From $304
    04

    Fri

  • PHL–SAN, 09/05/2026: From $221
    05

    Sat

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

    Sun

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

    Mon

  • PHL–SAN, 09/08/2026: From $256
    08

    Tue

  • PHL–SAN, 09/09/2026: From $221
    09

    Wed

  • PHL–SAN, 09/10/2026: From $189
    10

    Thu

  • PHL–SAN, 09/11/2026: From $207
    11

    Fri

  • PHL–SAN, 09/12/2026: From $189
    12

    Sat

  • PHL–SAN, 09/13/2026: From $274
    13

    Sun

  • PHL–SAN, 09/14/2026: From $226
    14

    Mon

  • PHL–SAN, 09/15/2026: From $189
    15

    Tue

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

    • Range$189-$308

    *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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