American Airlines flights from Portland, ME to Seattle

Recent searches for flights from Portland, ME to Seattle

Sep 2026
From$566*
Updated: 6 hours ago
Round tripIEconomy
Oct 2026
From$245*
Updated: 6 hours ago
Round tripIEconomy
Nov 2026
From$245*
Updated: 6 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $407
cmp-daily-histogram-bars-legend-max-price-aria-label $954
Displaying fares for September-2026
  • PWM–SEA, 09/15/26 – 09/22/26: From $569
    15

    Tu

    SEP

  • PWM–SEA, 09/16/26 – 09/23/26: From $805
    16

    We

  • PWM–SEA, 09/17/26 – 09/24/26: From $858
    17

    Th

  • PWM–SEA, 09/18/26 – 09/25/26: From $699
    18

    Fr

  • PWM–SEA, 09/19/26 – 09/26/26: From $569
    19

    Sa

  • PWM–SEA, 09/20/26 – 09/27/26: From $751
    20

    Su

  • PWM–SEA, 09/21/26 – 09/28/26: From $954
    21

    Mo

  • PWM–SEA, 09/22/26 – 09/29/26: From $569
    22

    Tu

  • PWM–SEA, 09/23/26 – 09/30/26: From $612
    23

    We

  • PWM–SEA, 09/24/26 – 10/01/26: From $896
    24

    Th

  • PWM–SEA, 09/25/26 – 10/02/26: From $668
    25

    Fr

  • PWM–SEA, 09/26/26 – 10/03/26: From $569
    26

    Sa

  • PWM–SEA, 09/27/26 – 10/04/26: From $668
    27

    Su

  • PWM–SEA, 09/28/26 – 10/05/26: From $624
    28

    Mo

  • PWM–SEA, 09/29/26 – 10/06/26: From $566
    29

    Tu

  • PWM–SEA, 09/30/26 – 10/07/26: From $569
    30

    We

  • PWM–SEA, 10/01/26 – 10/08/26: From $865
    01

    Th

    OCT

  • PWM–SEA, 10/02/26 – 10/09/26: From $603
    02

    Fr

  • PWM–SEA, 10/03/26 – 10/10/26: From $569
    03

    Sa

  • PWM–SEA, 10/04/26 – 10/11/26: From $603
    04

    Su

  • PWM–SEA, 10/05/26 – 10/12/26: From $569
    05

    Mo

  • PWM–SEA, 10/06/26 – 10/13/26: From $553
    06

    Tu

  • PWM–SEA, 10/07/26 – 10/14/26: From $472
    07

    We

  • PWM–SEA, 10/08/26 – 10/15/26: From $602
    08

    Th

  • PWM–SEA, 10/09/26 – 10/16/26: From $439
    09

    Fr

  • PWM–SEA, 10/10/26 – 10/17/26: From $407
    10

    Sa

  • PWM–SEA, 10/11/26 – 10/18/26: From $516
    11

    Su

  • PWM–SEA: cmp-view-offers-disclaimer. Find Offers
    12

    Mo

  • PWM–SEA: cmp-view-offers-disclaimer. Find Offers
    13

    Tu

  • PWM–SEA: cmp-view-offers-disclaimer. Find Offers
    14

    We

    • range$407-$954

    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, ME to Seattle flights

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    Portland, ME (PWM)to

    Seattle (SEA)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 hours ago

    Portland, ME (PWM)to

    Seattle (SEA)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $245Fare subject to changes
    Updated: 6 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, ME to Seattle

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

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    • 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, ME to Seattle