American Airlines flights from Portland, OR to San Antonio

Recent searches for flights from Portland, OR to San Antonio

Aug 2026
From$335*
Updated: 8 hours ago
Round tripIEconomy
Sep 2026
From$328*
Updated: 8 hours ago
Round tripIEconomy
Oct 2026
From$347*
Updated: 8 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $335
cmp-daily-histogram-bars-legend-max-price-aria-label $788
Displaying fares for August-2026
  • PDX–SAT: cmp-view-offers-disclaimer. Find Offers
    04

    Tu

    AUG

  • PDX–SAT, 08/05/26 – 08/12/26: From $719
    05

    We

  • PDX–SAT, 08/06/26 – 08/13/26: From $788
    06

    Th

  • PDX–SAT, 08/07/26 – 08/14/26: From $732
    07

    Fr

  • PDX–SAT, 08/08/26 – 08/15/26: From $788
    08

    Sa

  • PDX–SAT, 08/09/26 – 08/16/26: From $732
    09

    Su

  • PDX–SAT, 08/10/26 – 08/17/26: From $732
    10

    Mo

  • PDX–SAT, 08/11/26 – 08/18/26: From $473
    11

    Tu

  • PDX–SAT, 08/12/26 – 08/19/26: From $473
    12

    We

  • PDX–SAT, 08/13/26 – 08/20/26: From $447
    13

    Th

  • PDX–SAT, 08/14/26 – 08/21/26: From $447
    14

    Fr

  • PDX–SAT, 08/15/26 – 08/22/26: From $447
    15

    Sa

  • PDX–SAT, 08/16/26 – 08/23/26: From $653
    16

    Su

  • PDX–SAT, 08/17/26 – 08/24/26: From $503
    17

    Mo

  • PDX–SAT, 08/18/26 – 08/25/26: From $423
    18

    Tu

  • PDX–SAT, 08/19/26 – 08/26/26: From $397
    19

    We

  • PDX–SAT, 08/20/26 – 08/27/26: From $499
    20

    Th

  • PDX–SAT, 08/21/26 – 08/28/26: From $432
    21

    Fr

  • PDX–SAT, 08/22/26 – 08/29/26: From $397
    22

    Sa

  • PDX–SAT, 08/23/26 – 08/30/26: From $447
    23

    Su

  • PDX–SAT, 08/24/26 – 08/31/26: From $397
    24

    Mo

  • PDX–SAT, 08/25/26 – 09/01/26: From $347
    25

    Tu

  • PDX–SAT, 08/26/26 – 09/02/26: From $347
    26

    We

  • PDX–SAT, 08/27/26 – 09/03/26: From $516
    27

    Th

  • PDX–SAT, 08/28/26 – 09/04/26: From $452
    28

    Fr

  • PDX–SAT, 08/29/26 – 09/05/26: From $335
    29

    Sa

  • PDX–SAT, 08/30/26 – 09/06/26: From $385
    30

    Su

  • PDX–SAT, 08/31/26 – 09/07/26: From $347
    31

    Mo

  • PDX–SAT: cmp-view-offers-disclaimer. Find Offers
    01

    Tu

    SEP

  • PDX–SAT: cmp-view-offers-disclaimer. Find Offers
    02

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  • PDX–SAT: cmp-view-offers-disclaimer. Find Offers
    03

    Th

    • range$335-$788

    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 Portland, OR to San Antonio flights

    $
    keyboard_arrow_down

    Portland, OR (PDX)to

    San Antonio (SAT)
    09/05/26 - 09/12/26

    Round trip

    Economy

    from
    $328Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    08/29/26 - 09/05/26

    Round trip

    Economy

    from
    $335Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    09/10/26 - 09/17/26

    Round trip

    Economy

    from
    $340Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    09/12/26 - 09/19/26

    Round trip

    Economy

    from
    $340Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 8 hours ago

    Portland, OR (PDX)to

    San Antonio (SAT)
    09/09/26 - 09/16/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 8 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 Portland, OR to San Antonio

    Looking for lower fares on your trip from Portland, OR to San Antonio? 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 Portland, OR to San Antonio