American Airlines flights from Seattle to Sydney

Recent searches for flights from Seattle to Sydney

Sep 2026
From$1,979*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$1,088*
Updated: 7 hours ago
Round tripIEconomy
Nov 2026
From$1,088*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.3K
cmp-daily-histogram-bars-legend-max-price-aria-label $3.0K
Displaying fares for September-2026
  • SEA–SYD: cmp-view-offers-disclaimer. Find Offers
    03

    Th

    SEP

  • SEA–SYD, 09/04/26 – 09/11/26: From $2,079
    04

    Fr

  • SEA–SYD, 09/05/26 – 09/12/26: From $2,997
    05

    Sa

  • SEA–SYD, 09/06/26 – 09/13/26: From $2,179
    06

    Su

  • SEA–SYD, 09/07/26 – 09/14/26: From $2,129
    07

    Mo

  • SEA–SYD, 09/08/26 – 09/15/26: From $1,979
    08

    Tu

  • SEA–SYD, 09/09/26 – 09/16/26: From $1,979
    09

    We

  • SEA–SYD, 09/10/26 – 09/17/26: From $2,079
    10

    Th

  • SEA–SYD, 09/11/26 – 09/18/26: From $2,079
    11

    Fr

  • SEA–SYD, 09/12/26 – 09/19/26: From $2,079
    12

    Sa

  • SEA–SYD, 09/13/26 – 09/20/26: From $2,029
    13

    Su

  • SEA–SYD, 09/14/26 – 09/21/26: From $1,979
    14

    Mo

  • SEA–SYD, 09/15/26 – 09/22/26: From $1,979
    15

    Tu

  • SEA–SYD, 09/16/26 – 09/23/26: From $1,979
    16

    We

  • SEA–SYD, 09/17/26 – 09/24/26: From $2,079
    17

    Th

  • SEA–SYD, 09/18/26 – 09/25/26: From $2,079
    18

    Fr

  • SEA–SYD, 09/19/26 – 09/26/26: From $2,079
    19

    Sa

  • SEA–SYD, 09/20/26 – 09/27/26: From $2,029
    20

    Su

  • SEA–SYD, 09/21/26 – 09/28/26: From $1,979
    21

    Mo

  • SEA–SYD, 09/22/26 – 09/29/26: From $1,979
    22

    Tu

  • SEA–SYD, 09/23/26 – 09/30/26: From $1,979
    23

    We

  • SEA–SYD, 09/24/26 – 10/01/26: From $2,079
    24

    Th

  • SEA–SYD, 09/25/26 – 10/02/26: From $2,079
    25

    Fr

  • SEA–SYD, 09/26/26 – 10/03/26: From $2,079
    26

    Sa

  • SEA–SYD, 09/27/26 – 10/04/26: From $2,029
    27

    Su

  • SEA–SYD, 09/28/26 – 10/05/26: From $1,979
    28

    Mo

  • SEA–SYD, 09/29/26 – 10/06/26: From $1,979
    29

    Tu

  • SEA–SYD, 09/30/26 – 10/07/26: From $1,979
    30

    We

  • SEA–SYD, 10/01/26 – 10/08/26: From $1,338
    01

    Th

    OCT

  • SEA–SYD, 10/02/26 – 10/09/26: From $2,252
    02

    Fr

    • range$1,338-$2,997

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Seattle to Sydney flights

    $
    keyboard_arrow_down

    Seattle (SEA)to

    Sydney (SYD)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    11/09/26 - 11/16/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Sydney (SYD)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $1,088Fare subject to changes
    Updated: 7 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Seattle to Sydney

    Looking for lower fares on your trip from Seattle to Sydney? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

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    American Airlines flights from Seattle to Sydney