Cheap flights from Seattle to East Sydney

View AU$606 flight on Wed, 1 Oct. 2025Opens in a new window

Popular airlines from Seattle to East Sydney

  • Air Canada

    Air Canada

  • United

    United

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • All Nippon Airways

    All Nippon Airways

  • Air New Zealand

    Air New Zealand

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Cheap Flights from Seattle (SEA) to East Sydney (SYD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 19 Aug. - Sun, 14 Sep.
SEA
Seattle
SYD
Sydney
AU$1,173 Return, found 4 days ago
AU$1,173
Return
found 4 days ago
Select Air Canada flight, departing Tue, 19 Aug. from Seattle to Sydney, returning Sun, 14 Sep., priced at AU$1,173 found 4 days ago
American Airlines
Mon, 22 Sep. - Fri, 10 Oct.
PAE
Seattle
SYD
Sydney
AU$1,229 Return, found 6 days ago
AU$1,229
Return
found 6 days ago
Select American Airlines flight, departing Mon, 22 Sep. from Seattle to Sydney, returning Fri, 10 Oct., priced at AU$1,229 found 6 days ago
United
Thu, 4 Sep. - Wed, 17 Sep.
SEA
Seattle
SYD
Sydney
AU$1,261 Return, found 3 days ago
AU$1,261
Return
found 3 days ago
Select United flight, departing Thu, 4 Sep. from Seattle to Sydney, returning Wed, 17 Sep., priced at AU$1,261 found 3 days ago
Delta
Thu, 4 Sep. - Wed, 17 Sep.
SEA
Seattle
SYD
Sydney
AU$1,261 Return, found 3 days ago
AU$1,261
Return
found 3 days ago
Select Delta flight, departing Thu, 4 Sep. from Seattle to Sydney, returning Wed, 17 Sep., priced at AU$1,261 found 3 days ago
Qantas Airways
Thu, 4 Sep. - Wed, 17 Sep.
SEA
Seattle
SYD
Sydney
AU$1,280 Return, found 3 days ago
AU$1,280
Return
found 3 days ago
Select Qantas Airways flight, departing Thu, 4 Sep. from Seattle to Sydney, returning Wed, 17 Sep., priced at AU$1,280 found 3 days ago
All Nippon Airways
Tue, 19 Aug. - Tue, 9 Sep.
SEA
Seattle
SYD
Sydney
AU$1,312 Return, found 4 days ago
AU$1,312
Return
found 4 days ago
Select All Nippon Airways flight, departing Tue, 19 Aug. from Seattle to Sydney, returning Tue, 9 Sep., priced at AU$1,312 found 4 days ago

Find the cheapest month to fly from Seattle (SEA) to Sydney (SYD)

February is typically the cheapest month to fly

From AU$1,158 - AU$1,959 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.