Seattle (SEA) to Sydney (SYD) flights from $1,499* 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)

May 2026
From$1,559*
Refreshed: 7 hrs ago
Per person, return/Economy
Jun 2026
From$1,499*
Refreshed: 7 hrs ago
Per person, return/Economy
Jul 2026
From$1,503*
Refreshed: 1 day ago
Per person, return/Economy
$1.6K
$2.2K
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    • Range$1,559-$2,178

    *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)
    Jun 16, 2026 - Jul 13, 2026
    From
    $1,499
    Refreshed: 7 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 15, 2026 - Jul 28, 2026
    From
    $1,499
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 21, 2026 - Aug 04, 2026
    From
    $1,499
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 09, 2026 - Jul 28, 2026
    From
    $1,499
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 23, 2026 - Aug 04, 2026
    From
    $1,499
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 22, 2026 - Aug 04, 2026
    From
    $1,499
    Refreshed: 9 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jul 01, 2026 - Jul 28, 2026
    From
    $1,503
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Sydney (SYD)
    Jun 30, 2026 - Jul 29, 2026
    From
    $1,503
    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. Price may be based on travel to or from SYD or WSI airports