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Cheap flights from Seattle (BFI) to Sydney (SYD)

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0 Children (2~11)
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How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)

How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)
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How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)
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How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)
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Cheap flights from Seattle to Sydney in November , December 2025

18 Nov - 11 Dec $ 1,856.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
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17 Nov - 11 Dec $ 1,856.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
18 Nov - 11 Dec $ 1,867.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
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Last minute flights from Seattle to Sydney

20 Nov - 01 Dec $ 2,511.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
19 Nov - 01 Dec $ 2,511.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
23 Nov - 01 Dec $ 2,511.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Sydney from Seattle

9:35 AM - 9:25 PM
Qantas
2 Stops
26h 50m
BFI - SYD
$ 979
Kiwi
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9:35 AM - 9:25 PM
Qantas
2 Stops
26h 50m
BFI - SYD
$ 979
Kiwi
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9:35 AM - 8:15 PM
Qantas
2 Stops
25h 35m
BFI - SYD
$ 990
Kiwi
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How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)

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