Air New Zealand awards and accreditations - 2025 World's Safest Airline (Airlineratings.com), 2024 World's Safest Airline, Best Premium Economy, Best Economy Class (Airlineratings.com). See these and more Air New Zealand awards & accreditations. 
Seattle (SEA) to Australia flights from $1,160* with Air New Zealand
Search and book flights between Seattle and Australia by comparing our fares shown on this page. Plan your adventure today!
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Explore Air NZ flights from Seattle (SEA) to Australia departing in the next 90 days
Fares shown in this carousel are for return flights scheduled to depart in the next 3 months. Use the filters to narrow down your search for Seattle to Australia flights.
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Seattle (SEA)to
Sydney (SYD)Nov 11, 2025 - Nov 19, 2025From$1,164Refreshed: 12 hrs agoPer person, returnEconomy
Seattle (SEA)to
Melbourne (MEL)Nov 17, 2025 - Nov 26, 2025From$1,191Refreshed: 8 hrs agoPer person, returnEconomy
Seattle (SEA)to
Adelaide (ADL)Oct 07, 2025 - Oct 24, 2025From$2,375Refreshed: 16 hrs agoPer person, returnEconomy
Seattle (SEA)to
Brisbane (BNE)Nov 17, 2025 - Dec 03, 2025From$1,160Refreshed: 7 hrs agoPer person, returnEconomy
*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 flights from Seattle (SEA) to Australia departing in the next 11 months
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Seattle (SEA)to
Sydney (SYD)
Feb 10, 2026 - Mar 03, 2026
Per person, return
Economy
From
$1,164
Refreshed: 6 hrs ago
Seattle (SEA)to
Melbourne (MEL)
May 03, 2026 - May 31, 2026
Per person, return
Economy
From
$1,191
Refreshed: 31 minutes ago
Seattle (SEA)to
Adelaide (ADL)
Dec 16, 2025 - Jan 07, 2026
Per person, return
Economy
From
$2,400
Refreshed: 3 hrs ago
Seattle (SEA)to
Brisbane (BNE)
Jan 19, 2026 - Feb 02, 2026
Per person, return
Economy
From
$1,260
Refreshed: 3 hrs ago
Seattle (SEA)to
Hobart (HBA)
Feb 15, 2026 - Feb 24, 2026
Per person, return
Economy
From
$1,293
Refreshed: 11 hrs ago
Seattle (SEA)to
Perth (PER)
Dec 22, 2025 - Dec 31, 2025
Per person, return
Economy
From
$3,363
Refreshed: 1 day ago
*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 more flight routes from Seattle
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*Fares displayed are all inclusive round trip fares including all taxes, fees and other mandatory charges