Cheapest return NYC–SYD flights, December

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

Return flights

02 Dec - 14 Dec United
10 Dec - 23 Dec Delta
24 Dec - 03 Jan Alaska Airlines
10 Dec - 31 Dec United
30 Dec - 06 Jan Delta
14 Dec - 04 Jan Alaska Airlines
14 Dec - 30 Dec Alaska Airlines
11 Dec - 02 Jan Alaska Airlines
23 Dec - 02 Jan Alaska Airlines
24 Dec - 04 Jan Alaska Airlines
12 Dec - 03 Jan Alaska Airlines
20 Dec - 30 Dec Air Serbia
22 Dec - 14 Jan Air Canada
18 Dec - 03 Jan Alaska Airlines
22 Dec - 28 Dec Delta
18 Dec - 05 Jan Malaysia Airlines

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

Powered by

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Feel free to contact us with any feedback or request another flight research.