Book a trip from Boston to Sydney with Cathay Pacific , fares from USD2,011
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 | 01/05/2025 - 13/05/2025 | From USD2,011 Seen 20 hours ago |
Book Business Class flights to Sydney - selected offers
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Flight Deals for Popular Routes on Cathay Pacific
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*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
Boston (BOS)to
Sydney (SYD)17/09/2025 - 28/09/2025FromUSD3,945Seen 1 day agoRound-trip/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.)