Seattle (SEA) to Sydney (SYD) flights from $1,116* with Air New Zealand

Search and book flights between Seattle and Sydney by comparing our fares shown on this page. Plan your adventure today!

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From November 2026*, Air New Zealand will operate flights to and from Western Sydney International Airport, alongside our existing services at Sydney Kingsford Smith Airport.

*Subject to Government Approvals.

Find the best fares for flights from Seattle (SEA) to Sydney (SYD)

Sep 2026
From$1,677*
Refreshed: 6 hrs ago
Per person, return/Economy
Oct 2026
From$1,124*
Refreshed: 9 hrs ago
Per person, return/Economy
Nov 2026
From$1,124*
Refreshed: 9 hrs ago
Per person, return/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.7K
cmp-daily-histogram-bars-legend-max-price-aria-label $2.8K
Displaying fares for September-2026
  • SEA–SYD, Sep 16, 2026 – Oct 28, 2026: From $1,677
    16

    Wed

    SEP

  • SEA–SYD, Sep 17, 2026 – Oct 28, 2026: From $1,857
    17

    Thu

  • SEA–SYD, Sep 18, 2026 – Oct 28, 2026: From $2,657
    18

    Fri

  • SEA–SYD, Sep 19, 2026 – Oct 10, 2026: From $2,039
    19

    Sat

  • SEA–SYD, Sep 20, 2026 – Oct 03, 2026: From $1,879
    20

    Sun

  • SEA–SYD, Sep 21, 2026 – Oct 13, 2026: From $1,839
    21

    Mon

  • SEA–SYD, Sep 22, 2026 – Oct 12, 2026: From $1,939
    22

    Tue

  • SEA–SYD, Sep 23, 2026 – Oct 12, 2026: From $2,164
    23

    Wed

  • SEA–SYD, Sep 24, 2026 – Nov 04, 2026: From $2,202
    24

    Thu

  • SEA–SYD, Sep 25, 2026 – Nov 02, 2026: From $2,007
    25

    Fri

  • SEA–SYD, Sep 26, 2026 – Nov 04, 2026: From $2,007
    26

    Sat

  • SEA–SYD, Sep 27, 2026 – Nov 02, 2026: From $1,807
    27

    Sun

  • SEA–SYD, Sep 28, 2026 – Nov 04, 2026: From $2,157
    28

    Mon

  • SEA–SYD, Sep 29, 2026 – Sep 30, 2026: From $2,814
    29

    Tue

  • SEA–SYD: cmp-view-offers-disclaimer. Check availability
    30

    Wed

  • SEA–SYD, Oct 01, 2026 – Oct 28, 2026: From $2,402
    01

    Thu

    OCT

  • SEA–SYD, Oct 02, 2026 – Oct 28, 2026: From $2,652
    02

    Fri

  • SEA–SYD, Oct 03, 2026 – Oct 30, 2026: From $2,052
    03

    Sat

  • SEA–SYD, Oct 04, 2026 – Oct 28, 2026: From $2,152
    04

    Sun

  • SEA–SYD, Oct 05, 2026 – Oct 28, 2026: From $2,352
    05

    Mon

  • SEA–SYD, Oct 06, 2026 – Oct 16, 2026: From $2,008
    06

    Tue

  • SEA–SYD, Oct 07, 2026 – Nov 02, 2026: From $1,957
    07

    Wed

  • SEA–SYD, Oct 08, 2026 – Oct 28, 2026: From $2,202
    08

    Thu

  • SEA–SYD, Oct 09, 2026 – Nov 02, 2026: From $2,002
    09

    Fri

  • SEA–SYD, Oct 10, 2026 – Nov 02, 2026: From $2,002
    10

    Sat

  • SEA–SYD, Oct 11, 2026 – Nov 02, 2026: From $2,152
    11

    Sun

  • SEA–SYD, Oct 12, 2026 – Oct 28, 2026: From $2,152
    12

    Mon

  • SEA–SYD, Oct 13, 2026 – Nov 11, 2026: From $1,957
    13

    Tue

  • SEA–SYD, Oct 14, 2026 – Nov 02, 2026: From $2,152
    14

    Wed

  • SEA–SYD, Oct 15, 2026 – Oct 28, 2026: From $2,002
    15

    Thu

    • Range$1,677-$2,814

    *Fares displayed have been available for flights searched within the last 24 hours and may not currently be available at time of booking. Flights may not be available at peak times or on all flights. Additional fees, including service/card payment fees may apply. Other terms and conditions may also apply.

    Compare & book Air NZ Seattle (SEA) to Sydney (SYD) flights departing in the next 90 days

    $

    Seattle (SEA)to

    Sydney (SYD)
    Oct 26, 2026 - Nov 04, 2026
    From
    $1,124
    Refreshed: 6 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Oct 26, 2026 - Nov 18, 2026
    From
    $1,124
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Oct 28, 2026 - Nov 02, 2026
    From
    $1,124
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Dec 02, 2026 - Dec 09, 2026
    From
    $1,124
    Refreshed: 6 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Nov 11, 2026 - Nov 18, 2026
    From
    $1,124
    Refreshed: 1 hour ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Nov 02, 2026 - Nov 04, 2026
    From
    $1,124
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Nov 18, 2026 - Dec 09, 2026
    From
    $1,124
    Refreshed: 6 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Oct 28, 2026 - Nov 04, 2026
    From
    $1,124
    Refreshed: 6 hrs ago
    Per person, return
    Economy
    *Fares displayed have been available for flights searched within the last 24 hours and may not currently be available at time of booking. Flights may not be available at peak times or on all flights. Additional fees, including service/card payment fees may apply. Other terms and conditions may also apply.

    Explore flights to Sydney

    *Fares displayed are all inclusive round trip fares including all taxes, fees and other mandatory charges. For flights to or from Sydney, prices may be based on travel to or from SYD or WSI airports.