Seattle (SEA) to Bilbao (BIO) flights from USD756

*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 USD810
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.6K
Displaying fares for August-2026
  • SEA–BIO, 08/04/2026 – 08/11/2026: From USD1,478
    04

    Tu

    AUG

  • SEA–BIO, 08/05/2026 – 08/12/2026: From USD1,473
    05

    We

  • SEA–BIO, 08/06/2026 – 08/13/2026: From USD1,527
    06

    Th

  • SEA–BIO, 08/07/2026 – 08/14/2026: From USD1,523
    07

    Fr

  • SEA–BIO, 08/08/2026 – 09/05/2026: From USD1,494
    08

    Sa

  • SEA–BIO, 08/09/2026 – 09/06/2026: From USD1,449
    09

    Su

  • SEA–BIO, 08/10/2026 – 09/07/2026: From USD1,507
    10

    Mo

  • SEA–BIO, 08/11/2026 – 09/08/2026: From USD1,395
    11

    Tu

  • SEA–BIO, 08/12/2026 – 09/09/2026: From USD1,394
    12

    We

  • SEA–BIO, 08/13/2026 – 09/10/2026: From USD1,444
    13

    Th

  • SEA–BIO, 08/14/2026 – 09/11/2026: From USD1,440
    14

    Fr

  • SEA–BIO, 08/15/2026 – 09/05/2026: From USD1,494
    15

    Sa

  • SEA–BIO, 08/16/2026 – 09/06/2026: From USD1,440
    16

    Su

  • SEA–BIO, 08/17/2026 – 09/14/2026: From USD1,444
    17

    Mo

  • SEA–BIO, 08/18/2026 – 09/08/2026: From USD1,144
    18

    Tu

  • SEA–BIO, 08/19/2026 – 09/09/2026: From USD1,140
    19

    We

  • SEA–BIO, 08/20/2026 – 09/10/2026: From USD1,547
    20

    Th

  • SEA–BIO, 08/21/2026 – 09/11/2026: From USD1,543
    21

    Fr

  • SEA–BIO, 08/22/2026 – 09/19/2026: From USD1,597
    22

    Sa

  • SEA–BIO, 08/23/2026 – 09/13/2026: From USD1,533
    23

    Su

  • SEA–BIO, 08/24/2026 – 09/21/2026: From USD1,533
    24

    Mo

  • SEA–BIO, 08/25/2026 – 09/08/2026: From USD1,487
    25

    Tu

  • SEA–BIO, 08/26/2026 – 09/09/2026: From USD1,348
    26

    We

  • SEA–BIO, 08/27/2026 – 09/17/2026: From USD1,423
    27

    Th

  • SEA–BIO, 08/28/2026 – 09/11/2026: From USD1,418
    28

    Fr

  • SEA–BIO, 08/29/2026 – 09/05/2026: From USD1,472
    29

    Sa

  • SEA–BIO, 08/30/2026 – 09/06/2026: From USD1,398
    30

    Su

  • SEA–BIO, 08/31/2026 – 09/21/2026: From USD1,398
    31

    Mo

  • SEA–BIO, 09/01/2026 – 09/29/2026: From USD810
    01

    Tu

    SEP

  • SEA–BIO, 09/02/2026 – 09/16/2026: From USD821
    02

    We

  • SEA–BIO, 09/03/2026 – 09/10/2026: From USD936
    03

    Th

  • RangeUSD810-USD1,597