American Airlines flights from Seattle to Barcelona

Recent searches for flights from Seattle to Barcelona

Aug 2026
From$2,441*
Updated: 3 hours ago
Round tripIEconomy
Sep 2026
From$975*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$948*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.0K
cmp-daily-histogram-bars-legend-max-price-aria-label $3.2K
Displaying fares for August-2026
  • SEA–BCN, 08/27/26 – 09/03/26: From $2,925
    27

    Th

    AUG

  • SEA–BCN, 08/28/26 – 09/04/26: From $2,776
    28

    Fr

  • SEA–BCN, 08/29/26 – 09/05/26: From $2,555
    29

    Sa

  • SEA–BCN, 08/30/26 – 09/06/26: From $2,485
    30

    Su

  • SEA–BCN, 08/31/26 – 09/07/26: From $2,441
    31

    Mo

  • SEA–BCN, 09/01/26 – 09/08/26: From $2,268
    01

    Tu

    SEP

  • SEA–BCN, 09/02/26 – 09/09/26: From $2,275
    02

    We

  • SEA–BCN, 09/03/26 – 09/10/26: From $3,188
    03

    Th

  • SEA–BCN, 09/04/26 – 09/11/26: From $2,328
    04

    Fr

  • SEA–BCN, 09/05/26 – 09/12/26: From $2,409
    05

    Sa

  • SEA–BCN, 09/06/26 – 09/13/26: From $2,318
    06

    Su

  • SEA–BCN, 09/07/26 – 09/14/26: From $2,274
    07

    Mo

  • SEA–BCN, 09/08/26 – 09/15/26: From $2,268
    08

    Tu

  • SEA–BCN, 09/09/26 – 09/16/26: From $2,275
    09

    We

  • SEA–BCN, 09/10/26 – 09/17/26: From $1,895
    10

    Th

  • SEA–BCN, 09/11/26 – 09/18/26: From $1,895
    11

    Fr

  • SEA–BCN, 09/12/26 – 09/19/26: From $1,938
    12

    Sa

  • SEA–BCN, 09/13/26 – 09/20/26: From $1,878
    13

    Su

  • SEA–BCN, 09/14/26 – 09/21/26: From $1,834
    14

    Mo

  • SEA–BCN, 09/15/26 – 09/22/26: From $1,835
    15

    Tu

  • SEA–BCN, 09/16/26 – 09/23/26: From $1,835
    16

    We

  • SEA–BCN, 09/17/26 – 09/24/26: From $1,525
    17

    Th

  • SEA–BCN, 09/18/26 – 09/25/26: From $1,688
    18

    Fr

  • SEA–BCN, 09/19/26 – 09/26/26: From $1,568
    19

    Sa

  • SEA–BCN, 09/20/26 – 09/27/26: From $1,525
    20

    Su

  • SEA–BCN, 09/21/26 – 09/28/26: From $1,474
    21

    Mo

  • SEA–BCN, 09/22/26 – 09/29/26: From $1,475
    22

    Tu

  • SEA–BCN, 09/23/26 – 09/30/26: From $1,468
    23

    We

  • SEA–BCN, 09/24/26 – 10/01/26: From $1,025
    24

    Th

  • SEA–BCN, 09/25/26 – 10/02/26: From $1,025
    25

    Fr

  • SEA–BCN, 09/26/26 – 10/03/26: From $1,075
    26

    Sa

    • range$1,025-$3,188

    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 Barcelona flights

    $
    keyboard_arrow_down

    Seattle (SEA)to

    Barcelona (BCN)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $948Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    Barcelona (BCN)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $948Fare 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 Seattle to Barcelona

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