AirHint found the following cheapest return flights from New York (NYC) to Sydney (SYD) in December 2026 (see full year).

Return flights

01 Dec - 09 Dec	Delta
01 Dec - 31 Dec	Air Canada
01 Dec - 10 Dec	Delta
07 Dec - 11 Dec	Air Canada
24 Dec - 05 Jan	Air Canada
25 Dec - 30 Dec	Qantas
16 Dec - 23 Dec	ANA
19 Dec - 30 Dec	ANA
15 Dec - 02 Jan	Turkish Airlines
10 Dec - 07 Jan	Korean Air
19 Dec - 26 Dec	Air Canada
19 Dec - 03 Jan	Air Canada
15 Dec - 04 Jan	Air Canada
15 Dec - 08 Jan	Emirates
15 Dec - 09 Jan	Korean Air

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 961€

Return flights