AirHint found the following cheapest return flights from New York (JFK) to Sydney (SYD) in December 2025 (see full year).

Return flights

01 Dec - 14 Dec	Qantas
11 Dec - 17 Jan	Air Canada
04 Dec - 15 Dec	Qantas
09 Dec - 12 Dec	Hawaiian Airlines
01 Dec - 06 Dec	ANA
05 Dec - 15 Dec	ANA
28 Dec - 17 Jan	ANA
11 Dec - 23 Dec	ANA
23 Dec - 11 Jan	Air Canada
27 Dec - 14 Jan	Turkish Airlines
13 Dec - 24 Jan	ANA
28 Dec - 10 Jan	Delta
25 Dec - 17 Jan	ANA
01 Dec - 01 Jan	Qantas
24 Dec - 10 Jan	ANA
15 Dec - 31 Dec	ANA
14 Dec - 11 Jan	ANA
22 Dec - 29 Dec	Delta
17 Dec - 31 Dec	Emirates
14 Dec - 21 Dec	Delta

Also check the deals for one-way flights from New York to Sydney in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from New York to Sydney in December from 892€

Return flights