Seattle (SEA) to Basel (BSL) flights from USD710

*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 Basel

cmp-daily-histogram-bars-legend-min-price-aria-label USD772
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.3K
Displaying fares for October-2026
  • SEA–BSL, 10/09/2026 – 11/06/2026: From USD1,055
    09

    Fr

    OCT

  • SEA–BSL, 10/10/2026 – 11/07/2026: From USD1,105
    10

    Sa

  • SEA–BSL, 10/11/2026 – 11/08/2026: From USD1,045
    11

    Su

  • SEA–BSL, 10/12/2026 – 11/09/2026: From USD1,050
    12

    Mo

  • SEA–BSL, 10/13/2026 – 11/03/2026: From USD995
    13

    Tu

  • SEA–BSL, 10/14/2026 – 11/11/2026: From USD1,000
    14

    We

  • SEA–BSL, 10/15/2026 – 11/12/2026: From USD1,060
    15

    Th

  • SEA–BSL, 10/16/2026 – 11/06/2026: From USD1,055
    16

    Fr

  • SEA–BSL, 10/17/2026 – 11/07/2026: From USD1,105
    17

    Sa

  • SEA–BSL, 10/18/2026 – 11/08/2026: From USD1,045
    18

    Su

  • SEA–BSL, 10/19/2026 – 11/09/2026: From USD1,050
    19

    Mo

  • SEA–BSL, 10/20/2026 – 11/10/2026: From USD995
    20

    Tu

  • SEA–BSL, 10/21/2026 – 11/11/2026: From USD1,000
    21

    We

  • SEA–BSL, 10/22/2026 – 11/05/2026: From USD1,060
    22

    Th

  • SEA–BSL, 10/23/2026 – 11/06/2026: From USD1,060
    23

    Fr

  • SEA–BSL, 10/24/2026 – 11/07/2026: From USD1,105
    24

    Sa

  • SEA–BSL, 10/25/2026 – 11/08/2026: From USD1,045
    25

    Su

  • SEA–BSL, 10/26/2026 – 11/09/2026: From USD1,045
    26

    Mo

  • SEA–BSL, 10/27/2026 – 11/10/2026: From USD995
    27

    Tu

  • SEA–BSL, 10/28/2026 – 11/04/2026: From USD995
    28

    We

  • SEA–BSL, 10/29/2026 – 11/19/2026: From USD1,055
    29

    Th

  • SEA–BSL, 10/30/2026 – 11/13/2026: From USD1,289
    30

    Fr

  • SEA–BSL, 10/31/2026 – 11/07/2026: From USD931
    31

    Sa

  • SEA–BSL, 11/01/2026 – 11/15/2026: From USD1,160
    01

    Su

    NOV

  • SEA–BSL, 11/02/2026 – 11/23/2026: From USD872
    02

    Mo

  • SEA–BSL, 11/03/2026 – 11/10/2026: From USD822
    03

    Tu

  • SEA–BSL, 11/04/2026 – 11/18/2026: From USD772
    04

    We

  • SEA–BSL, 11/05/2026 – 11/12/2026: From USD822
    05

    Th

  • SEA–BSL, 11/06/2026 – 11/13/2026: From USD822
    06

    Fr

  • SEA–BSL, 11/07/2026 – 11/21/2026: From USD872
    07

    Sa

  • SEA–BSL, 11/08/2026 – 11/15/2026: From USD822
    08

    Su

  • RangeUSD772-USD1,289