American Airlines flights from Philadelphia to San Diego

Recent searches for flights from Philadelphia to San Diego

Aug 2026
From$330*
Updated: 10 hours ago
Round tripIEconomy
Sep 2026
From$313*
Updated: 20 hours ago
Round tripIEconomy
Oct 2026
From$419*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $330
cmp-daily-histogram-bars-legend-max-price-aria-label $627
Displaying fares for August-2026
  • PHL–SAN, 08/04/26 – 08/11/26: From $491
    04

    Tu

    AUG

  • PHL–SAN, 08/05/26 – 08/12/26: From $501
    05

    We

  • PHL–SAN, 08/06/26 – 08/13/26: From $595
    06

    Th

  • PHL–SAN, 08/07/26 – 08/19/26: From $543
    07

    Fr

  • PHL–SAN, 08/08/26 – 08/12/26: From $491
    08

    Sa

  • PHL–SAN, 08/09/26 – 08/16/26: From $627
    09

    Su

  • PHL–SAN, 08/10/26 – 08/15/26: From $543
    10

    Mo

  • PHL–SAN, 08/11/26 – 08/18/26: From $491
    11

    Tu

  • PHL–SAN, 08/12/26 – 08/19/26: From $491
    12

    We

  • PHL–SAN, 08/13/26 – 08/19/26: From $467
    13

    Th

  • PHL–SAN, 08/14/26 – 08/22/26: From $553
    14

    Fr

  • PHL–SAN, 08/15/26 – 08/22/26: From $501
    15

    Sa

  • PHL–SAN, 08/16/26 – 08/22/26: From $553
    16

    Su

  • PHL–SAN, 08/17/26 – 08/24/26: From $595
    17

    Mo

  • PHL–SAN, 08/18/26 – 08/25/26: From $491
    18

    Tu

  • PHL–SAN, 08/19/26 – 08/26/26: From $491
    19

    We

  • PHL–SAN, 08/20/26 – 08/26/26: From $543
    20

    Th

  • PHL–SAN, 08/21/26 – 08/24/26: From $571
    21

    Fr

  • PHL–SAN, 08/22/26 – 08/29/26: From $491
    22

    Sa

  • PHL–SAN, 08/23/26 – 08/30/26: From $595
    23

    Su

  • PHL–SAN, 08/24/26 – 09/03/26: From $536
    24

    Mo

  • PHL–SAN, 08/25/26 – 08/30/26: From $330
    25

    Tu

  • PHL–SAN, 08/26/26 – 09/02/26: From $491
    26

    We

  • PHL–SAN, 08/27/26 – 08/31/26: From $547
    27

    Th

  • PHL–SAN, 08/28/26 – 09/01/26: From $543
    28

    Fr

  • PHL–SAN, 08/29/26 – 09/05/26: From $402
    29

    Sa

  • PHL–SAN, 08/30/26 – 09/06/26: From $454
    30

    Su

  • PHL–SAN, 08/31/26 – 09/07/26: From $560
    31

    Mo

  • PHL–SAN, 09/01/26 – 09/05/26: From $402
    01

    Tu

    SEP

  • PHL–SAN, 09/02/26 – 09/07/26: From $473
    02

    We

  • PHL–SAN, 09/03/26 – 09/06/26: From $419
    03

    Th

    • range$330-$627

    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)
    09/06/26 - 09/11/26

    Round trip

    Economy

    from
    $313Fare subject to changes
    Updated: 20 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    08/25/26 - 08/30/26

    Round trip

    Economy

    from
    $330Fare subject to changes
    Updated: 10 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    09/05/26 - 09/12/26

    Round trip

    Economy

    from
    $367Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    09/05/26 - 09/08/26

    Round trip

    Economy

    from
    $367Fare subject to changes
    Updated: 15 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    09/05/26 - 09/09/26

    Round trip

    Economy

    from
    $367Fare subject to changes
    Updated: 14 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    09/06/26 - 09/10/26

    Round trip

    Economy

    from
    $401Fare subject to changes
    Updated: 20 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    08/29/26 - 09/05/26

    Round trip

    Economy

    from
    $402Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    San Diego (SAN)
    09/01/26 - 09/05/26

    Round trip

    Economy

    from
    $402Fare subject to changes
    Updated: 3 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

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • 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