Book a trip from Boston to Sydney with Cathay Pacific , fares from USD2,198
Direct flights from Boston with three cabin classes to match your style, your Sydney adventure starts from USD2,198
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1 Passenger(s), Economy
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Deals on Boston (BOS) to Sydney (SYD) flights
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Book flights to Sydney SYD
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 20/03/2026 - 28/03/2026 | From USD2,198 Seen 1 day ago | |
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 13/12/2025 - 24/01/2026 | From USD3,111 Seen 1 day ago |
Book Business Class flights to Sydney - selected offers
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Boston (BOS)to
Sydney (SYD)31/10/2025 - 06/11/2025FromUSD13,316Seen 12 hours agoRound-tripBusiness
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There are no fares that match your filter criteria. Please adjust your filters.*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.