Flights Seattle – Porto (SEA-OPO) from $736*

*Modifying this information may result in a different fare

Book flights from Seattle to Porto

Sep 2026
From$931*
Seen: 6 hrs ago
Round-trip/Economy
Oct 2026
From$736*
Seen: 7 hrs ago
Round-trip/Economy
Nov 2026
From$736*
Seen: 1 day ago
Round-trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $736
cmp-daily-histogram-bars-legend-max-price-aria-label $1.2K
Displaying fares for September-2026
  • SEA–OPO, 09/28/2026 – 10/12/2026: From $931
    28

    Mo

    sep

  • SEA–OPO, 09/29/2026 – 10/13/2026: From $932
    29

    Tu

  • SEA–OPO, 09/30/2026 – 10/14/2026: From $931
    30

    We

  • SEA–OPO, 10/01/2026 – 10/08/2026: From $1,167
    01

    Th

    oct

  • SEA–OPO, 10/02/2026 – 10/09/2026: From $1,162
    02

    Fr

  • SEA–OPO, 10/03/2026 – 10/10/2026: From $1,051
    03

    Sa

  • SEA–OPO, 10/04/2026 – 10/11/2026: From $991
    04

    Su

  • SEA–OPO, 10/05/2026 – 10/12/2026: From $931
    05

    Mo

  • SEA–OPO, 10/06/2026 – 10/13/2026: From $931
    06

    Tu

  • SEA–OPO, 10/07/2026 – 10/21/2026: From $1,107
    07

    We

  • SEA–OPO, 10/08/2026 – 10/15/2026: From $991
    08

    Th

  • SEA–OPO, 10/09/2026 – 10/12/2026: From $991
    09

    Fr

  • SEA–OPO, 10/10/2026 – 11/07/2026: From $1,051
    10

    Sa

  • SEA–OPO, 10/11/2026 – 11/08/2026: From $991
    11

    Su

  • SEA–OPO, 10/12/2026 – 10/19/2026: From $931
    12

    Mo

  • SEA–OPO, 10/13/2026 – 10/20/2026: From $941
    13

    Tu

  • SEA–OPO, 10/14/2026 – 10/21/2026: From $941
    14

    We

  • SEA–OPO, 10/15/2026 – 10/22/2026: From $991
    15

    Th

  • SEA–OPO, 10/16/2026 – 10/19/2026: From $991
    16

    Fr

  • SEA–OPO, 10/17/2026 – 11/07/2026: From $1,051
    17

    Sa

  • SEA–OPO, 10/18/2026 – 11/15/2026: From $1,001
    18

    Su

  • SEA–OPO, 10/19/2026 – 11/09/2026: From $1,001
    19

    Mo

  • SEA–OPO, 10/20/2026 – 11/10/2026: From $951
    20

    Tu

  • SEA–OPO, 10/21/2026 – 11/04/2026: From $951
    21

    We

  • SEA–OPO, 10/22/2026 – 10/29/2026: From $999
    22

    Th

  • SEA–OPO, 10/23/2026 – 11/13/2026: From $1,001
    23

    Fr

  • SEA–OPO, 10/24/2026 – 11/07/2026: From $1,051
    24

    Sa

  • SEA–OPO, 10/25/2026 – 11/15/2026: From $1,001
    25

    Su

  • SEA–OPO, 10/26/2026 – 11/09/2026: From $791
    26

    Mo

  • SEA–OPO, 10/27/2026 – 11/24/2026: From $736
    27

    Tu

    • Range$736-$1,167

    *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 Porto for the upcoming months

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    The best deals on flights from Seattle to Porto for the upcoming months
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/10/2026

    From

    $736

    Seen: 7 hrs ago

    Seattle (SEA)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/17/2026

    From

    $736

    Seen: 7 hrs ago

    Seattle (SEA)Porto (OPO)Round-trip
    /
    Economy    		11/03/2026 - 11/10/2026

    From

    $736

    Seen: 11 hrs ago

    Seattle (SEA)Porto (OPO)Round-trip
    /
    Economy    		11/03/2026 - 11/17/2026

    From

    $736

    Seen: 11 hrs ago

    Seattle (SEA)Porto (OPO)Round-trip
    /
    Economy    		11/03/2026 - 11/24/2026

    From

    $736

    Seen: 11 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.
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    Travel from Seattle to Porto with Air France

    Whether you're looking for a last-minute Seattle - Porto (Portugal) 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 Porto (OPO) or directly pick your departure date if your trip to Porto (Portugal) is already scheduled.

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