American Airlines flights from Seattle to Portland, ME

Recent searches for flights from Seattle to Portland, ME

Aug 2026
From$549*
Updated: 1 hour ago
Round tripIEconomy
Sep 2026
From$375*
Updated: 1 hour ago
Round tripIEconomy
Oct 2026
From$375*
Updated: 1 hour ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $380
cmp-daily-histogram-bars-legend-max-price-aria-label $700
Displaying fares for August-2026
  • SEA–PWM: cmp-view-offers-disclaimer. Find Offers
    23

    Su

    AUG

  • SEA–PWM, 08/24/26 – 08/31/26: From $679
    24

    Mo

  • SEA–PWM, 08/25/26 – 09/01/26: From $549
    25

    Tu

  • SEA–PWM, 08/26/26 – 09/02/26: From $549
    26

    We

  • SEA–PWM, 08/27/26 – 09/03/26: From $679
    27

    Th

  • SEA–PWM, 08/28/26 – 09/04/26: From $679
    28

    Fr

  • SEA–PWM, 08/29/26 – 09/05/26: From $549
    29

    Sa

  • SEA–PWM, 08/30/26 – 09/06/26: From $648
    30

    Su

  • SEA–PWM, 08/31/26 – 09/07/26: From $689
    31

    Mo

  • SEA–PWM, 09/01/26 – 09/08/26: From $583
    01

    Tu

    SEP

  • SEA–PWM, 09/02/26 – 09/09/26: From $549
    02

    We

  • SEA–PWM, 09/03/26 – 09/10/26: From $700
    03

    Th

  • SEA–PWM, 09/04/26 – 09/11/26: From $700
    04

    Fr

  • SEA–PWM, 09/05/26 – 09/12/26: From $462
    05

    Sa

  • SEA–PWM, 09/06/26 – 09/13/26: From $617
    06

    Su

  • SEA–PWM, 09/07/26 – 09/14/26: From $690
    07

    Mo

  • SEA–PWM, 09/08/26 – 09/15/26: From $556
    08

    Tu

  • SEA–PWM, 09/09/26 – 09/16/26: From $501
    09

    We

  • SEA–PWM, 09/10/26 – 09/17/26: From $532
    10

    Th

  • SEA–PWM, 09/11/26 – 09/18/26: From $394
    11

    Fr

  • SEA–PWM, 09/12/26 – 09/19/26: From $522
    12

    Sa

  • SEA–PWM, 09/13/26 – 09/20/26: From $634
    13

    Su

  • SEA–PWM, 09/14/26 – 09/21/26: From $495
    14

    Mo

  • SEA–PWM, 09/15/26 – 09/22/26: From $380
    15

    Tu

  • SEA–PWM, 09/16/26 – 09/23/26: From $380
    16

    We

  • SEA–PWM, 09/17/26 – 09/24/26: From $440
    17

    Th

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

    Fr

  • SEA–PWM, 09/19/26 – 09/26/26: From $380
    19

    Sa

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

    Su

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

    Mo

  • SEA–PWM, 09/22/26 – 09/27/26: From $500
    22

    Tu

    • range$380-$700

    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 Seattle to Portland, ME flights

    $
    keyboard_arrow_down

    Seattle (SEA)to

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

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

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

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

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

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

    Portland, ME (PWM)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

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

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

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

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

    Portland, ME (PWM)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour ago

    Seattle (SEA)to

    Portland, ME (PWM)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $375Fare subject to changes
    Updated: 1 hour 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 Seattle to Portland, ME

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