Seattle (SEA) to Adelaide (ADL) flights from $1,531* with Air New Zealand

Search and book flights between Seattle and Adelaide 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 Adelaide (ADL)

May 2026
From$1,690*
Refreshed: 1 day ago
Per person, return/Economy
Jun 2026
From$1,567*
Refreshed: 18 hrs ago
Per person, return/Economy
Jul 2026
From$1,585*
Refreshed: 1 day ago
Per person, return/Economy
$1.7K
$2.4K
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    • Range$1,690-$2,415

    *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 Adelaide (ADL) flights departing in the next 90 days

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 15, 2026 - Aug 23, 2026
    From
    $1,567
    Refreshed: 18 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 20, 2026 - Aug 24, 2026
    From
    $1,578
    Refreshed: 6 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 19, 2026 - Aug 24, 2026
    From
    $1,578
    Refreshed: 18 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jul 31, 2026 - Aug 16, 2026
    From
    $1,585
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jul 31, 2026 - Aug 10, 2026
    From
    $1,585
    Refreshed: 6 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 15, 2026 - Jul 19, 2026
    From
    $1,599
    Refreshed: 11 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 19, 2026 - Jul 22, 2026
    From
    $1,606
    Refreshed: 11 hrs ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Jun 19, 2026 - Jul 24, 2026
    From
    $1,628
    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 Adelaide

    *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