Cheapest return flights from Boston (BOS) to Sydney (SYD), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
07 Dec 18 Jan United
04 Dec 13 Dec Delta
03 Dec 13 Dec Air Canada
30 Dec 18 Jan Air New Zealand
11 Dec 27 Dec Air New Zealand
10 Dec 27 Dec Air New Zealand
14 Dec 28 Dec Air New Zealand
18 Dec 28 Dec Air Canada
26 Dec 09 Jan Air Canada
22 Dec 07 Jan jetBlue
25 Dec 02 Jan Turkish Airlines
21 Dec 04 Jan Air New Zealand
26 Dec 03 Jan Turkish Airlines
26 Dec 02 Jan Etihad Airways
16 Dec 05 Jan United
17 Dec 03 Jan Porter Airlines (Canada) Ltd
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deals for one-way flights from Boston to Sydney in December.

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Updated Aug 25, 2026.

About these fares

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