Book a trip from Boston to Sydney with Cathay Pacific , fares from USD2,139
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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
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 05/01/2026 - 28/01/2026 | From USD2,139 Seen 18 hours ago | |
| Boston (BOS) | Sydney (SYD) | Round-trip / Economy | 04/01/2026 - 27/01/2026 | From USD2,189 Seen 18 hours ago |
Lowest fares on round-trip flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.
Book Business Class flights to Sydney - selected offers
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Lowest fares on flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.