Seattle (SEA) to Sydney (SYD) flights from $1,156* 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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Find the best fares for flights from Seattle (SEA) to Sydney (SYD)

Mar 2026
From$1,764*
Refreshed: 10 hrs ago
Per person, return/Economy
Apr 2026
From$1,358*
Refreshed: 1 day ago
Per person, return/Economy
May 2026
From$1,156*
Refreshed: 1 day ago
Per person, return/Economy
$1.4K
$3.4K
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    • Range$1,408-$3,356

    *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)
    May 12, 2026 - May 19, 2026
    From
    $1,156
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    May 06, 2026 - Jun 07, 2026
    From
    $1,156
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 09, 2026 - Jul 07, 2026
    From
    $1,160
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 10, 2026 - Jul 07, 2026
    From
    $1,160
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 16, 2026 - Jul 07, 2026
    From
    $1,160
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 02, 2026 - Jun 17, 2026
    From
    $1,160
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    May 26, 2026 - Jun 02, 2026
    From
    $1,160
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    May 31, 2026 - Jun 16, 2026
    From
    $1,160
    Refreshed: 1 day 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