Cheap flights from Seattle (BFI) to Sydney (SYD)
Know your dates, get live prices in secondsHow 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 June , July 2026
30 Jun - 21 Jul
$ 2,131.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
30 Jun - 31 Jul
$ 2,138.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
30 Jun - 24 Jul
$ 2,138.00
BFI
Seattle
Air Excursions
2 STOPS
SYD
Sydney
SYD
Sydney
Air Excursions
2 STOPS
BFI
Seattle
One-way flights to Sydney from Seattle
8:05 PM - 11:55 AM
Alaska Airlines
Alaska Airlines
2 Stops
29h 45m
BFI - SYD
BFI - SYD
2:45 PM - 11:50 AM
Qantas
Qantas
3 Stops
34h 45m
BFI - SYD
BFI - SYD
8:05 PM - 11:50 AM
Qantas
Qantas
2 Stops
29h 25m
BFI - SYD
BFI - SYD
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)
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How to find the cheapest flight from Seattle (BFI) to Sydney (SYD)
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