Flights Seattle – Bilbao (SEA-BIO) from $726*

*Modifying this information may result in a different fare

Book flights from Seattle to Bilbao

Aug 2026
From$1,390*
Seen: 1 day ago
Round-trip/Economy
Sep 2026
From$786*
Seen: 4 hrs ago
Round-trip/Economy
Oct 2026
From$786*
Seen: 4 hrs ago
Round-trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $841
cmp-daily-histogram-bars-legend-max-price-aria-label $1.8K
Displaying fares for August-2026
  • SEA–BIO, 08/19/2026 – 09/09/2026: From $1,390
    19

    We

    aug

  • SEA–BIO, 08/20/2026 – 09/17/2026: From $1,751
    20

    Th

  • SEA–BIO, 08/21/2026 – 09/11/2026: From $1,752
    21

    Fr

  • SEA–BIO, 08/22/2026 – 09/05/2026: From $1,801
    22

    Sa

  • SEA–BIO, 08/23/2026 – 09/20/2026: From $1,737
    23

    Su

  • SEA–BIO, 08/24/2026 – 09/21/2026: From $1,737
    24

    Mo

  • SEA–BIO, 08/25/2026 – 09/08/2026: From $1,691
    25

    Tu

  • SEA–BIO, 08/26/2026 – 09/09/2026: From $1,477
    26

    We

  • SEA–BIO, 08/27/2026 – 09/10/2026: From $1,547
    27

    Th

  • SEA–BIO, 08/28/2026 – 09/18/2026: From $1,548
    28

    Fr

  • SEA–BIO, 08/29/2026 – 09/05/2026: From $1,597
    29

    Sa

  • SEA–BIO, 08/30/2026 – 09/27/2026: From $1,523
    30

    Su

  • SEA–BIO, 08/31/2026 – 09/28/2026: From $1,402
    31

    Mo

  • SEA–BIO, 09/01/2026 – 09/15/2026: From $1,104
    01

    Tu

    sep

  • SEA–BIO, 09/02/2026 – 09/23/2026: From $1,161
    02

    We

  • SEA–BIO, 09/03/2026 – 09/17/2026: From $1,221
    03

    Th

  • SEA–BIO, 09/04/2026 – 09/11/2026: From $1,226
    04

    Fr

  • SEA–BIO, 09/05/2026 – 09/26/2026: From $1,283
    05

    Sa

  • SEA–BIO, 09/06/2026 – 10/04/2026: From $973
    06

    Su

  • SEA–BIO, 09/07/2026 – 10/05/2026: From $978
    07

    Mo

  • SEA–BIO, 09/08/2026 – 09/15/2026: From $1,000
    08

    Tu

  • SEA–BIO, 09/09/2026 – 09/23/2026: From $1,100
    09

    We

  • SEA–BIO, 09/10/2026 – 09/17/2026: From $983
    10

    Th

  • SEA–BIO, 09/11/2026 – 09/18/2026: From $1,226
    11

    Fr

  • SEA–BIO, 09/12/2026 – 09/26/2026: From $1,049
    12

    Sa

  • SEA–BIO, 09/13/2026 – 10/04/2026: From $973
    13

    Su

  • SEA–BIO, 09/14/2026 – 09/28/2026: From $866
    14

    Mo

  • SEA–BIO, 09/15/2026 – 09/22/2026: From $949
    15

    Tu

  • SEA–BIO, 09/16/2026 – 10/07/2026: From $1,044
    16

    We

  • SEA–BIO, 09/17/2026 – 09/24/2026: From $886
    17

    Th

  • SEA–BIO, 09/18/2026 – 10/02/2026: From $841
    18

    Fr

    • Range$841-$1,801

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.

    The best deals on flights from Seattle to Bilbao for the upcoming months

    $
    keyboard_arrow_down
    The best deals on flights from Seattle to Bilbao for the upcoming months
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Bilbao (BIO)Round-trip
    /
    Economy    		11/17/2026 - 12/08/2026

    From

    $726

    Seen: 12 hrs ago

    Seattle (SEA)Bilbao (BIO)Round-trip
    /
    Economy    		11/16/2026 - 11/19/2026

    From

    $726

    Seen: 12 hrs ago

    Seattle (SEA)Bilbao (BIO)Round-trip
    /
    Economy    		11/17/2026 - 11/24/2026

    From

    $726

    Seen: 12 hrs ago

    Seattle (SEA)Bilbao (BIO)Round-trip
    /
    Economy    		11/17/2026 - 11/20/2026

    From

    $733

    Seen: 12 hrs ago

    Seattle (SEA)Bilbao (BIO)Round-trip
    /
    Economy    		11/17/2026 - 12/15/2026

    From

    $734

    Seen: 12 hrs ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
    Air France airplane

    Travel from Seattle to Bilbao with Air France

    Whether you're looking for a last-minute Seattle - Bilbao (Spain) flight or planning a flight at a later date, take advantage of our lowest prices for your travel dates on this site. Take a look at the next 6 months and find the best price to fly whit Air France from Seattle (SEA) to Bilbao (BIO) or directly pick your departure date if your trip to Bilbao (Spain) is already scheduled.

    More flight offers from Seattle to Bilbao

    Explore Air France's Top-Pick Destinations