Book a trip from Boston to Sydney with Cathay Pacific , fares from USD1,597
Deals on Boston (BOS) to Sydney (SYD) flights
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Try alternate month or interact with individual days below in order to find offers.
Flight Deals for Popular Routes on Cathay Pacific
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From | To | Fare Type | Dates | Price | |
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FromBoston (BOS) | ToSydney (SYD) | Round-trip / Economy | 29/09/2025 - 15/10/2025 | From USD2,524* Seen 1 day ago | From Boston To Sydney Fare Type Round-trip Economy Dates 29/09/2025 - 15/10/2025 From USD2,524 Seen 1 day ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
Travel to Sydney in Premium Economy
Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)
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