American Airlines flights from Philadelphia to San Diego

Recent searches for flights from Philadelphia to San Diego

Sep 2026
From$472*
Updated: 22 hours ago
Round tripIEconomy
Oct 2026
From$441*
Updated: 17 hours ago
Round tripIEconomy
Nov 2026
From$441*
Updated: 17 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $472
cmp-daily-histogram-bars-legend-max-price-aria-label $672
Displaying fares for September-2026
  • PHL–SAN, 09/10/26 – 09/17/26: From $637
    10

    Th

    SEP

  • PHL–SAN, 09/11/26 – 09/12/26: From $563
    11

    Fr

  • PHL–SAN, 09/12/26 – 11/14/26: From $476
    12

    Sa

  • PHL–SAN, 09/13/26 – 09/19/26: From $573
    13

    Su

  • PHL–SAN, 09/14/26 – 09/21/26: From $672
    14

    Mo

  • PHL–SAN, 09/15/26 – 09/22/26: From $521
    15

    Tu

  • PHL–SAN, 09/16/26 – 09/23/26: From $511
    16

    We

  • PHL–SAN, 09/17/26 – 09/24/26: From $625
    17

    Th

  • PHL–SAN, 09/18/26 – 09/21/26: From $615
    18

    Fr

  • PHL–SAN, 09/19/26 – 09/26/26: From $521
    19

    Sa

  • PHL–SAN, 09/20/26 – 09/26/26: From $573
    20

    Su

  • PHL–SAN, 09/21/26 – 09/28/26: From $615
    21

    Mo

  • PHL–SAN, 09/22/26 – 09/29/26: From $511
    22

    Tu

  • PHL–SAN, 09/23/26 – 09/30/26: From $511
    23

    We

  • PHL–SAN, 09/24/26 – 10/01/26: From $615
    24

    Th

  • PHL–SAN, 09/25/26 – 09/30/26: From $559
    25

    Fr

  • PHL–SAN, 09/26/26 – 10/03/26: From $511
    26

    Sa

  • PHL–SAN, 09/27/26 – 10/04/26: From $625
    27

    Su

  • PHL–SAN, 09/28/26 – 10/03/26: From $559
    28

    Mo

  • PHL–SAN, 09/29/26 – 10/13/26: From $476
    29

    Tu

  • PHL–SAN, 09/30/26 – 10/13/26: From $472
    30

    We

  • PHL–SAN, 10/01/26 – 10/10/26: From $483
    01

    Th

    OCT

  • PHL–SAN, 10/02/26 – 10/06/26: From $512
    02

    Fr

  • PHL–SAN, 10/03/26 – 10/10/26: From $476
    03

    Sa

  • PHL–SAN, 10/04/26 – 10/11/26: From $580
    04

    Su

  • PHL–SAN, 10/05/26 – 10/06/26: From $553
    05

    Mo

  • PHL–SAN, 10/06/26 – 10/14/26: From $472
    06

    Tu

  • PHL–SAN, 10/07/26 – 10/09/26: From $514
    07

    We

  • PHL–SAN, 10/08/26 – 10/12/26: From $580
    08

    Th

  • PHL–SAN, 10/09/26 – 10/15/26: From $512
    09

    Fr

    • range$472-$672

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Philadelphia to San Diego flights

    $
    keyboard_arrow_down

    Philadelphia (PHL)to

    San Diego (SAN)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $441Fare subject to changes
    Updated: 17 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Philadelphia to San Diego

    Looking for lower fares on your trip from Philadelphia to San Diego? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

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    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Philadelphia to San Diego