American Airlines flights from Philadelphia to Santa Rosa

Recent searches for flights from Philadelphia to Santa Rosa

Aug 2026
From$423*
Updated: 1 minute ago
Round tripIEconomy
Sep 2026
From$413*
Updated: 1 minute ago
Round tripIEconomy
Oct 2026
From$413*
Updated: 1 minute ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $413
cmp-daily-histogram-bars-legend-max-price-aria-label $1.2K
Displaying fares for August-2026
  • PHL–STS, 08/09/26 – 08/16/26: From $1,172
    09

    Su

    AUG

  • PHL–STS, 08/10/26 – 08/17/26: From $941
    10

    Mo

  • PHL–STS, 08/11/26 – 08/18/26: From $602
    11

    Tu

  • PHL–STS, 08/12/26 – 08/19/26: From $567
    12

    We

  • PHL–STS, 08/13/26 – 08/20/26: From $743
    13

    Th

  • PHL–STS, 08/14/26 – 08/21/26: From $743
    14

    Fr

  • PHL–STS, 08/15/26 – 08/22/26: From $666
    15

    Sa

  • PHL–STS, 08/16/26 – 08/23/26: From $897
    16

    Su

  • PHL–STS, 08/17/26 – 08/24/26: From $743
    17

    Mo

  • PHL–STS, 08/18/26 – 08/25/26: From $495
    18

    Tu

  • PHL–STS, 08/19/26 – 08/26/26: From $495
    19

    We

  • PHL–STS, 08/20/26 – 08/27/26: From $651
    20

    Th

  • PHL–STS, 08/21/26 – 08/28/26: From $651
    21

    Fr

  • PHL–STS, 08/22/26 – 08/29/26: From $563
    22

    Sa

  • PHL–STS, 08/23/26 – 08/30/26: From $624
    23

    Su

  • PHL–STS, 08/24/26 – 08/31/26: From $559
    24

    Mo

  • PHL–STS, 08/25/26 – 09/01/26: From $423
    25

    Tu

  • PHL–STS, 08/26/26 – 09/02/26: From $423
    26

    We

  • PHL–STS, 08/27/26 – 09/03/26: From $624
    27

    Th

  • PHL–STS, 08/28/26 – 09/04/26: From $624
    28

    Fr

  • PHL–STS, 08/29/26 – 09/05/26: From $423
    29

    Sa

  • PHL–STS, 08/30/26 – 09/06/26: From $491
    30

    Su

  • PHL–STS, 08/31/26 – 09/07/26: From $768
    31

    Mo

  • PHL–STS, 09/01/26 – 09/08/26: From $418
    01

    Tu

    SEP

  • PHL–STS, 09/02/26 – 09/09/26: From $418
    02

    We

  • PHL–STS, 09/03/26 – 09/10/26: From $605
    03

    Th

  • PHL–STS, 09/04/26 – 09/11/26: From $556
    04

    Fr

  • PHL–STS, 09/05/26 – 09/12/26: From $418
    05

    Sa

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

    Su

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

    Mo

  • PHL–STS, 09/08/26 – 09/15/26: From $413
    08

    Tu

    • range$413-$1,172

    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 Santa Rosa flights

    $
    keyboard_arrow_down

    Philadelphia (PHL)to

    Santa Rosa (STS)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute ago

    Philadelphia (PHL)to

    Santa Rosa (STS)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $413Fare subject to changes
    Updated: 1 minute 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 Santa Rosa

    Looking for lower fares on your trip from Philadelphia to Santa Rosa? 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 Santa Rosa