*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.
Seattle (SEA) to Adelaide (ADL) flights from $1,526* with Air New Zealand
Search and book flights between Seattle and Adelaide by comparing our fares shown on this page. Plan your adventure today!
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1 Passenger, Economy - lowest
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Find the best fares for flights from Seattle (SEA) to Adelaide (ADL)
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Compare & book Air NZ Seattle (SEA) to Adelaide (ADL) flights departing in the next 90 days
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$
Seattle (SEA)to
Adelaide (ADL)Oct 28, 2026 - Nov 27, 2026
From
$1,580
Refreshed: 1 hour ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Oct 21, 2026 - Nov 13, 2026
From
$1,630
Refreshed: 9 hrs ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 02, 2026 - Sep 13, 2026
From
$1,637
Refreshed: 1 day ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 14, 2026 - Sep 21, 2026
From
$1,641
Refreshed: 23 hrs ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 12, 2026 - Nov 01, 2026
From
$1,681
Refreshed: 1 day ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 11, 2026 - Sep 20, 2026
From
$1,687
Refreshed: 21 hrs ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 12, 2026 - Sep 21, 2026
From
$1,691
Refreshed: 23 hrs ago
Per person, return
Economy
Seattle (SEA)to
Adelaide (ADL)Sep 04, 2026 - Sep 16, 2026
From
$1,691
Refreshed: 17 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.