American Airlines flights from Seattle to Lisbon

Recent searches for flights from Seattle to Lisbon

Sep 2026
From$1,085*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$767*
Updated: 7 hours ago
Round tripIEconomy
Nov 2026
From$767*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.1K
cmp-daily-histogram-bars-legend-max-price-aria-label $2.5K
Displaying fares for September-2026
  • SEA–LIS, 09/02/26 – 09/09/26: From $1,398
    02

    We

    SEP

  • SEA–LIS, 09/03/26 – 09/10/26: From $1,613
    03

    Th

  • SEA–LIS, 09/04/26 – 09/11/26: From $1,632
    04

    Fr

  • SEA–LIS, 09/05/26 – 09/12/26: From $2,137
    05

    Sa

  • SEA–LIS, 09/06/26 – 09/13/26: From $1,628
    06

    Su

  • SEA–LIS, 09/07/26 – 09/14/26: From $1,909
    07

    Mo

  • SEA–LIS, 09/08/26 – 09/15/26: From $1,463
    08

    Tu

  • SEA–LIS, 09/09/26 – 09/16/26: From $1,468
    09

    We

  • SEA–LIS, 09/10/26 – 09/17/26: From $1,543
    10

    Th

  • SEA–LIS, 09/11/26 – 09/18/26: From $1,580
    11

    Fr

  • SEA–LIS, 09/12/26 – 09/19/26: From $1,598
    12

    Sa

  • SEA–LIS, 09/13/26 – 09/20/26: From $1,594
    13

    Su

  • SEA–LIS, 09/14/26 – 09/21/26: From $1,528
    14

    Mo

  • SEA–LIS, 09/15/26 – 09/22/26: From $1,456
    15

    Tu

  • SEA–LIS, 09/16/26 – 09/23/26: From $1,472
    16

    We

  • SEA–LIS, 09/17/26 – 09/24/26: From $1,368
    17

    Th

  • SEA–LIS, 09/18/26 – 09/25/26: From $1,423
    18

    Fr

  • SEA–LIS, 09/19/26 – 09/26/26: From $1,432
    19

    Sa

  • SEA–LIS, 09/20/26 – 09/27/26: From $1,586
    20

    Su

  • SEA–LIS, 09/21/26 – 09/28/26: From $1,519
    21

    Mo

  • SEA–LIS, 09/22/26 – 09/29/26: From $1,303
    22

    Tu

  • SEA–LIS, 09/23/26 – 09/30/26: From $1,351
    23

    We

  • SEA–LIS, 09/24/26 – 10/01/26: From $1,356
    24

    Th

  • SEA–LIS, 09/25/26 – 10/02/26: From $2,104
    25

    Fr

  • SEA–LIS, 09/26/26 – 10/03/26: From $2,505
    26

    Sa

  • SEA–LIS, 09/27/26 – 10/04/26: From $1,368
    27

    Su

  • SEA–LIS, 09/28/26 – 10/05/26: From $1,356
    28

    Mo

  • SEA–LIS, 09/29/26 – 10/06/26: From $1,133
    29

    Tu

  • SEA–LIS, 09/30/26 – 10/07/26: From $1,085
    30

    We

  • SEA–LIS, 10/01/26 – 10/08/26: From $1,059
    01

    Th

    OCT

    • range$1,059-$2,505

    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 Lisbon flights

    $
    keyboard_arrow_down

    Seattle (SEA)to

    Lisbon (LIS)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Lisbon (LIS)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $767Fare subject to changes
    Updated: 7 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 Seattle to Lisbon

    Looking for lower fares on your trip from Seattle to Lisbon? 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 Lisbon