Cheapest return flights from Newark to Sydney in December from 861€

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

Return flights

29 Dec - 22 Jan Air Canada
27 Dec - 16 Jan Hawaiian Airlines
30 Dec - 13 Jan Spirit Airlines
29 Dec - 10 Jan Spirit Airlines
27 Dec - 07 Jan Spirit Airlines
27 Dec - 11 Jan United
31 Dec - 07 Jan Spirit Airlines
29 Dec - 01 Jan Spirit Airlines
28 Dec - 09 Jan Lufthansa
31 Dec - 08 Jan United

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

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