Book a trip from Boston to Sydney with Cathay Pacific , fares from USD1,465
Book a trip from Boston to Sydney ..
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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 | 19/10/2025 - 16/04/2026 | From USD1,465 Seen 19 hours ago | |
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 23/10/2025 - 19/04/2026 | From USD1,550 Seen 19 hours ago | |
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 29/01/2026 - 28/04/2026 | From USD2,055 Seen 5 hours ago | |
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 24/12/2025 - 31/12/2025 | From USD3,249 Seen 1 day ago |
Book Business Class flights to Sydney - selected offers
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There are no fares that match your filter criteria. Please adjust your filters.The Cathay Pacific experience
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All fares displayed include taxes and carrier-imposed surcharges. All fares, government taxes and fees, and surcharges are subject to change at any time. For ticket cancellations, where applicable, the Hong Kong Passenger Security Charge, the Hong Kong Air Passenger Departure Tax, and the Hong Kong International Airport Construction Fee will be refunded without any administration fees.
Flight Deals for Popular Routes on Cathay Pacific
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There are no fares that match your filter criteria. Please adjust your filters.
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.