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Cheap flights from Portland (PDX) to Sydney (SYD)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Portland (PDX) to Sydney (SYD)

How to find the cheapest flight from Portland (PDX) to Sydney (SYD)
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How to find the cheapest flight from Portland (PDX) to Sydney (SYD)
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How to find the cheapest flight from Portland (PDX) to Sydney (SYD)
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Cheap flights from Portland to Sydney in August , September 2026

24 Aug - 06 Sep $ 1,177.00
PDX
Portland
Alaska Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
1 STOPS
PDX
Portland
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24 Aug - 08 Sep $ 1,499.00
PDX
Portland
Alaska Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
PDX
Portland
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24 Aug - 04 Sep $ 1,663.00
PDX
Portland
Alaska Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
1 STOPS
PDX
Portland
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Last minute flights from Portland to Sydney

26 Aug - 31 Aug $ 1,688.00
PDX
Portland
United Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
1 STOPS
PDX
Portland
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21 Aug - 31 Aug $ 1,725.00
PDX
Portland
Air New Zealand
2 STOPS
SYD
Sydney
SYD
Sydney
Air New Zealand
1 STOPS
PDX
Portland
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24 Aug - 31 Aug $ 2,186.00
PDX
Portland
Air Canada
1 STOPS
SYD
Sydney
SYD
Sydney
Air Canada
1 STOPS
PDX
Portland
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One-way flights to Sydney from Portland

8:00 AM - 12:00 PM
Alaska Airlines
1 Stops
17h 50m
PDX - SYD
$ 578
Kiwi
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8:00 AM - 12:00 PM
Alaska Airlines
1 Stops
17h 50m
PDX - SYD
$ 578
Kiwi
Pick dates
8:00 AM - 12:00 PM
Alaska Airlines
1 Stops
17h 50m
PDX - SYD
$ 638
Kiwi
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How to find the cheapest flight from Portland (PDX) to Sydney (SYD)

Related info for your journey
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How to find the cheapest flight from Portland (PDX) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.