American Airlines flights from San Antonio to Portland, ME

Recent searches for flights from San Antonio to Portland, ME

Aug 2026
From$380*
Updated: 5 hours ago
Round tripIEconomy
Sep 2026
From$371*
Updated: 5 hours ago
Round tripIEconomy
Oct 2026
From$391*
Updated: 5 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $380
cmp-daily-histogram-bars-legend-max-price-aria-label $994
Displaying fares for August-2026
  • SAT–PWM, 08/05/26 – 08/12/26: From $813
    05

    We

    AUG

  • SAT–PWM, 08/06/26 – 08/13/26: From $979
    06

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  • SAT–PWM, 08/07/26 – 08/14/26: From $903
    07

    Fr

  • SAT–PWM, 08/08/26 – 08/15/26: From $820
    08

    Sa

  • SAT–PWM, 08/09/26 – 08/16/26: From $979
    09

    Su

  • SAT–PWM, 08/10/26 – 08/17/26: From $994
    10

    Mo

  • SAT–PWM, 08/11/26 – 08/18/26: From $739
    11

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  • SAT–PWM, 08/12/26 – 08/19/26: From $735
    12

    We

  • SAT–PWM, 08/13/26 – 08/20/26: From $777
    13

    Th

  • SAT–PWM, 08/14/26 – 08/21/26: From $817
    14

    Fr

  • SAT–PWM, 08/15/26 – 08/22/26: From $735
    15

    Sa

  • SAT–PWM, 08/16/26 – 08/23/26: From $817
    16

    Su

  • SAT–PWM, 08/17/26 – 08/24/26: From $767
    17

    Mo

  • SAT–PWM, 08/18/26 – 08/25/26: From $494
    18

    Tu

  • SAT–PWM, 08/19/26 – 08/26/26: From $494
    19

    We

  • SAT–PWM, 08/20/26 – 08/27/26: From $494
    20

    Th

  • SAT–PWM, 08/21/26 – 08/28/26: From $516
    21

    Fr

  • SAT–PWM, 08/22/26 – 08/29/26: From $494
    22

    Sa

  • SAT–PWM, 08/23/26 – 08/30/26: From $573
    23

    Su

  • SAT–PWM, 08/24/26 – 08/31/26: From $494
    24

    Mo

  • SAT–PWM, 08/25/26 – 09/01/26: From $391
    25

    Tu

  • SAT–PWM, 08/26/26 – 09/02/26: From $391
    26

    We

  • SAT–PWM, 08/27/26 – 09/03/26: From $391
    27

    Th

  • SAT–PWM, 08/28/26 – 09/04/26: From $435
    28

    Fr

  • SAT–PWM, 08/29/26 – 09/05/26: From $380
    29

    Sa

  • SAT–PWM, 08/30/26 – 09/06/26: From $459
    30

    Su

  • SAT–PWM, 08/31/26 – 09/07/26: From $749
    31

    Mo

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

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    SEP

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

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

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  • SAT–PWM, 09/04/26 – 09/11/26: From $474
    04

    Fr

    • range$380-$994

    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 San Antonio to Portland, ME flights

    $
    keyboard_arrow_down

    San Antonio (SAT)to

    Portland, ME (PWM)
    09/05/26 - 09/12/26

    Round trip

    Economy

    from
    $371Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    08/29/26 - 09/05/26

    Round trip

    Economy

    from
    $380Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    09/09/26 - 09/16/26

    Round trip

    Economy

    from
    $382Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    09/12/26 - 09/19/26

    Round trip

    Economy

    from
    $382Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    09/10/26 - 09/17/26

    Round trip

    Economy

    from
    $382Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $391Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $391Fare subject to changes
    Updated: 5 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $391Fare subject to changes
    Updated: 5 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 San Antonio to Portland, ME

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