American Airlines flights from San Diego to Portland, ME

Recent searches for flights from San Diego to Portland, ME

Aug 2026
From$669*
Updated: 9 hours ago
Round tripIEconomy
Sep 2026
From$371*
Updated: 9 hours ago
Round tripIEconomy
Oct 2026
From$385*
Updated: 9 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $371
cmp-daily-histogram-bars-legend-max-price-aria-label $881
Displaying fares for August-2026
  • SAN–PWM, 08/23/26 – 08/30/26: From $881
    23

    Su

    AUG

  • SAN–PWM, 08/24/26 – 08/31/26: From $831
    24

    Mo

  • SAN–PWM, 08/25/26 – 09/01/26: From $721
    25

    Tu

  • SAN–PWM, 08/26/26 – 09/02/26: From $721
    26

    We

  • SAN–PWM, 08/27/26 – 09/03/26: From $881
    27

    Th

  • SAN–PWM, 08/28/26 – 09/04/26: From $863
    28

    Fr

  • SAN–PWM, 08/29/26 – 09/05/26: From $669
    29

    Sa

  • SAN–PWM, 08/30/26 – 09/06/26: From $749
    30

    Su

  • SAN–PWM, 08/31/26 – 09/07/26: From $760
    31

    Mo

  • SAN–PWM, 09/01/26 – 09/08/26: From $669
    01

    Tu

    SEP

  • SAN–PWM, 09/02/26 – 09/09/26: From $669
    02

    We

  • SAN–PWM, 09/03/26 – 09/10/26: From $749
    03

    Th

  • SAN–PWM, 09/04/26 – 09/11/26: From $744
    04

    Fr

  • SAN–PWM, 09/05/26 – 09/12/26: From $371
    05

    Sa

  • SAN–PWM, 09/06/26 – 09/13/26: From $548
    06

    Su

  • SAN–PWM, 09/07/26 – 09/14/26: From $755
    07

    Mo

  • SAN–PWM, 09/08/26 – 09/15/26: From $536
    08

    Tu

  • SAN–PWM, 09/09/26 – 09/16/26: From $371
    09

    We

  • SAN–PWM, 09/10/26 – 09/17/26: From $501
    10

    Th

  • SAN–PWM, 09/11/26 – 09/18/26: From $385
    11

    Fr

  • SAN–PWM, 09/12/26 – 09/19/26: From $406
    12

    Sa

  • SAN–PWM, 09/13/26 – 09/20/26: From $654
    13

    Su

  • SAN–PWM, 09/14/26 – 09/21/26: From $548
    14

    Mo

  • SAN–PWM, 09/15/26 – 09/22/26: From $462
    15

    Tu

  • SAN–PWM, 09/16/26 – 09/23/26: From $385
    16

    We

  • SAN–PWM, 09/17/26 – 09/24/26: From $560
    17

    Th

  • SAN–PWM, 09/18/26 – 09/25/26: From $434
    18

    Fr

  • SAN–PWM: cmp-view-offers-disclaimer. Find Offers
    19

    Sa

  • SAN–PWM: cmp-view-offers-disclaimer. Find Offers
    20

    Su

  • SAN–PWM: cmp-view-offers-disclaimer. Find Offers
    21

    Mo

  • SAN–PWM, 09/22/26 – 10/06/26: From $392
    22

    Tu

    • range$371-$881

    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 Diego to Portland, ME flights

    $
    keyboard_arrow_down

    San Diego (SAN)to

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

    Round trip

    Economy

    from
    $371Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

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

    Round trip

    Economy

    from
    $371Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    11/02/26 - 11/09/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 hours ago

    San Diego (SAN)to

    Portland, ME (PWM)
    11/05/26 - 11/12/26

    Round trip

    Economy

    from
    $385Fare subject to changes
    Updated: 9 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 Diego to Portland, ME

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