Seattle (SEA) to Bilbao (BIO) flights from USD733

*Modifying this information may result in a different fare

*All amounts are in USD. Taxes and surcharges are included. No booking fee is applicable. Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional baggage fees may apply.

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Lowest fares between Seattle and Bilbao

cmp-daily-histogram-bars-legend-min-price-aria-label USD786
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.2K
Displaying fares for September-2026
  • SEA–BIO, 09/10/2026 – 10/01/2026: From USD988
    10

    Th

    SEP

  • SEA–BIO, 09/11/2026 – 10/02/2026: From USD983
    11

    Fr

  • SEA–BIO, 09/12/2026 – 09/19/2026: From USD1,109
    12

    Sa

  • SEA–BIO, 09/13/2026 – 10/11/2026: From USD973
    13

    Su

  • SEA–BIO, 09/14/2026 – 10/05/2026: From USD973
    14

    Mo

  • SEA–BIO, 09/15/2026 – 10/13/2026: From USD923
    15

    Tu

  • SEA–BIO, 09/16/2026 – 10/14/2026: From USD923
    16

    We

  • SEA–BIO, 09/17/2026 – 10/08/2026: From USD943
    17

    Th

  • SEA–BIO, 09/18/2026 – 10/02/2026: From USD1,182
    18

    Fr

  • SEA–BIO, 09/19/2026 – 09/26/2026: From USD1,124
    19

    Sa

  • SEA–BIO, 09/20/2026 – 10/11/2026: From USD938
    20

    Su

  • SEA–BIO, 09/21/2026 – 09/28/2026: From USD943
    21

    Mo

  • SEA–BIO, 09/22/2026 – 10/20/2026: From USD888
    22

    Tu

  • SEA–BIO, 09/23/2026 – 10/14/2026: From USD893
    23

    We

  • SEA–BIO, 09/24/2026 – 10/15/2026: From USD938
    24

    Th

  • SEA–BIO, 09/25/2026 – 10/02/2026: From USD938
    25

    Fr

  • SEA–BIO, 09/26/2026 – 10/03/2026: From USD1,001
    26

    Sa

  • SEA–BIO, 09/27/2026 – 10/11/2026: From USD938
    27

    Su

  • SEA–BIO, 09/28/2026 – 10/12/2026: From USD938
    28

    Mo

  • SEA–BIO, 09/29/2026 – 10/06/2026: From USD888
    29

    Tu

  • SEA–BIO, 09/30/2026 – 10/07/2026: From USD1,094
    30

    We

  • SEA–BIO, 10/01/2026 – 10/15/2026: From USD938
    01

    Th

    OCT

  • SEA–BIO, 10/02/2026 – 10/23/2026: From USD938
    02

    Fr

  • SEA–BIO, 10/03/2026 – 10/10/2026: From USD1,000
    03

    Sa

  • SEA–BIO, 10/04/2026 – 10/11/2026: From USD938
    04

    Su

  • SEA–BIO, 10/05/2026 – 10/12/2026: From USD938
    05

    Mo

  • SEA–BIO, 10/06/2026 – 10/20/2026: From USD888
    06

    Tu

  • SEA–BIO, 10/07/2026 – 10/14/2026: From USD786
    07

    We

  • SEA–BIO, 10/08/2026 – 10/15/2026: From USD836
    08

    Th

  • SEA–BIO, 10/09/2026 – 10/16/2026: From USD841
    09

    Fr

  • RangeUSD786-USD1,182