Seattle (SEA) to Adelaide (ADL) flights from $1,208* 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)

Mar 2026
From$1,860*
Refreshed: 6 hrs ago
Per person, return/Economy
Apr 2026
From$1,259*
Refreshed: 1 day ago
Per person, return/Economy
May 2026
From$1,259*
Refreshed: 1 day ago
Per person, return/Economy
$1.7K
$3.2K
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    • Range$1,731-$3,208

    *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)
    Apr 29, 2026 - May 18, 2026
    From
    $1,259
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 13, 2026 - May 29, 2026
    From
    $1,259
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    Apr 25, 2026 - May 18, 2026
    From
    $1,304
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 16, 2026 - May 29, 2026
    From
    $1,309
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 23, 2026 - Jun 10, 2026
    From
    $1,309
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 08, 2026 - May 29, 2026
    From
    $1,309
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 25, 2026 - Jun 08, 2026
    From
    $1,309
    Refreshed: 1 day ago
    Per person, return
    Economy

    Seattle (SEA)to

    Adelaide (ADL)
    May 27, 2026 - Jun 10, 2026
    From
    $1,309
    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