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

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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 October , November 2026

29 Oct - 20 Nov $ 1,566.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
30 Oct - 20 Nov $ 1,566.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
29 Oct - 20 Nov $ 1,699.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
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Last minute flights from Seattle to Sydney

29 Oct - 01 Nov $ 1,761.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Oct - 01 Nov $ 1,785.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
28 Oct - 01 Nov $ 1,785.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
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One-way flights to Sydney from Seattle

5:25 AM - 9:25 PM
Alaska Airlines
2 Stops
31h
BFI - SYD
$ 830
Kiwi
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5:25 AM - 9:25 PM
Alaska Airlines
2 Stops
31h
BFI - SYD
$ 830
Kiwi
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2:45 PM - 9:45 PM
Alaska Airlines
2 Stops
21h 40m
BFI - SYD
$ 937
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.