American Airlines flights from San Antonio to Portland, ME

Recent searches for flights from San Antonio to Portland, ME

Aug 2026
From$742*
Updated: 20 hours ago
Round tripIEconomy
Sep 2026
From$369*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$369*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $369
cmp-daily-histogram-bars-legend-max-price-aria-label $1.2K
Displaying fares for August-2026
  • SAT–PWM, 08/25/26 – 09/01/26: From $813
    25

    Tu

    AUG

  • SAT–PWM, 08/26/26 – 09/02/26: From $813
    26

    We

  • SAT–PWM, 08/27/26 – 09/03/26: From $976
    27

    Th

  • SAT–PWM, 08/28/26 – 09/04/26: From $903
    28

    Fr

  • SAT–PWM, 08/29/26 – 09/05/26: From $813
    29

    Sa

  • SAT–PWM, 08/30/26 – 09/06/26: From $742
    30

    Su

  • SAT–PWM, 08/31/26 – 09/07/26: From $1,170
    31

    Mo

  • SAT–PWM, 09/01/26 – 09/08/26: From $739
    01

    Tu

    SEP

  • SAT–PWM, 09/02/26 – 09/09/26: From $735
    02

    We

  • SAT–PWM, 09/03/26 – 09/10/26: From $842
    03

    Th

  • SAT–PWM, 09/04/26 – 09/11/26: From $797
    04

    Fr

  • SAT–PWM, 09/05/26 – 09/12/26: From $483
    05

    Sa

  • SAT–PWM, 09/06/26 – 09/22/26: From $466
    06

    Su

  • SAT–PWM, 09/07/26 – 09/14/26: From $658
    07

    Mo

  • SAT–PWM, 09/08/26 – 09/15/26: From $516
    08

    Tu

  • SAT–PWM, 09/09/26 – 09/16/26: From $369
    09

    We

  • SAT–PWM, 09/10/26 – 09/17/26: From $369
    10

    Th

  • SAT–PWM, 09/11/26 – 09/18/26: From $380
    11

    Fr

  • SAT–PWM, 09/12/26 – 09/19/26: From $402
    12

    Sa

  • SAT–PWM, 09/13/26 – 09/20/26: From $714
    13

    Su

  • SAT–PWM, 09/14/26 – 09/21/26: From $586
    14

    Mo

  • SAT–PWM, 09/15/26 – 09/22/26: From $466
    15

    Tu

  • SAT–PWM, 09/16/26 – 09/23/26: From $393
    16

    We

  • SAT–PWM, 09/17/26 – 09/24/26: From $527
    17

    Th

  • SAT–PWM, 09/18/26 – 09/25/26: From $413
    18

    Fr

  • SAT–PWM, 09/19/26 – 09/26/26: From $402
    19

    Sa

  • SAT–PWM, 09/20/26 – 09/27/26: From $677
    20

    Su

  • SAT–PWM, 09/21/26 – 09/25/26: From $380
    21

    Mo

  • SAT–PWM: cmp-view-offers-disclaimer. Find Offers
    22

    Tu

  • SAT–PWM: cmp-view-offers-disclaimer. Find Offers
    23

    We

  • SAT–PWM, 09/24/26 – 10/01/26: From $638
    24

    Th

    • range$369-$1,170

    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)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

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

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

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

    Round trip

    Economy

    from
    $369Fare subject to changes
    Updated: 3 hours ago

    San Antonio (SAT)to

    Portland, ME (PWM)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $369Fare 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 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