Seattle (SEA) to Lisbon (LIS) flights from USD746

*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 Lisbon

Aug 2026
FromUSD1,277*
Seen: 3 hrs ago
Flight Type Round- trip/Economy Class
Sep 2026
FromUSD975*
Seen: 1 day ago
Flight Type Round- trip/Economy Class
Oct 2026
FromUSD746*
Seen: 5 hrs ago
Flight Type Round- trip/Economy Class
cmp-daily-histogram-bars-legend-min-price-aria-label USD1.0K
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.4K
Displaying fares for August-2026
  • SEA–LIS, 08/29/2026 – 09/05/2026: From USD1,351
    29

    Sa

    AUG

  • SEA–LIS, 08/30/2026 – 09/06/2026: From USD1,277
    30

    Su

  • SEA–LIS, 08/31/2026 – 09/21/2026: From USD1,277
    31

    Mo

  • SEA–LIS, 09/01/2026 – 09/08/2026: From USD1,217
    01

    Tu

    SEP

  • SEA–LIS, 09/02/2026 – 09/09/2026: From USD1,222
    02

    We

  • SEA–LIS, 09/03/2026 – 09/10/2026: From USD1,292
    03

    Th

  • SEA–LIS, 09/04/2026 – 09/25/2026: From USD1,287
    04

    Fr

  • SEA–LIS, 09/05/2026 – 09/19/2026: From USD1,347
    05

    Sa

  • SEA–LIS, 09/06/2026 – 10/04/2026: From USD1,285
    06

    Su

  • SEA–LIS, 09/07/2026 – 09/14/2026: From USD1,277
    07

    Mo

  • SEA–LIS, 09/08/2026 – 09/15/2026: From USD1,217
    08

    Tu

  • SEA–LIS, 09/09/2026 – 09/23/2026: From USD1,217
    09

    We

  • SEA–LIS, 09/10/2026 – 09/24/2026: From USD1,292
    10

    Th

  • SEA–LIS, 09/11/2026 – 09/18/2026: From USD1,287
    11

    Fr

  • SEA–LIS, 09/12/2026 – 09/26/2026: From USD1,347
    12

    Sa

  • SEA–LIS, 09/13/2026 – 10/11/2026: From USD1,285
    13

    Su

  • SEA–LIS, 09/14/2026 – 10/12/2026: From USD1,277
    14

    Mo

  • SEA–LIS, 09/15/2026 – 10/13/2026: From USD1,217
    15

    Tu

  • SEA–LIS, 09/16/2026 – 09/30/2026: From USD1,217
    16

    We

  • SEA–LIS, 09/17/2026 – 10/01/2026: From USD1,122
    17

    Th

  • SEA–LIS, 09/18/2026 – 10/16/2026: From USD1,117
    18

    Fr

  • SEA–LIS, 09/19/2026 – 10/10/2026: From USD1,283
    19

    Sa

  • SEA–LIS, 09/20/2026 – 10/18/2026: From USD1,117
    20

    Su

  • SEA–LIS, 09/21/2026 – 10/12/2026: From USD1,117
    21

    Mo

  • SEA–LIS, 09/22/2026 – 09/29/2026: From USD1,062
    22

    Tu

  • SEA–LIS, 09/23/2026 – 09/30/2026: From USD1,168
    23

    We

  • SEA–LIS, 09/24/2026 – 10/15/2026: From USD1,040
    24

    Th

  • SEA–LIS, 09/25/2026 – 10/09/2026: From USD1,035
    25

    Fr

  • SEA–LIS, 09/26/2026 – 10/10/2026: From USD1,100
    26

    Sa

  • SEA–LIS, 09/27/2026 – 10/18/2026: From USD1,035
    27

    Su

  • SEA–LIS, 09/28/2026 – 10/05/2026: From USD1,035
    28

    Mo

    • RangeUSD1,035-USD1,351

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