Cheapest return flights from New York to Sydney in December from 723€

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

Return flights

01 Dec - 08 Dec United
07 Dec - 21 Dec United
06 Dec - 10 Dec United
07 Dec - 14 Dec United
06 Dec - 13 Dec United
30 Dec - 13 Jan United
10 Dec - 30 Dec United
10 Dec - 29 Dec United
29 Dec - 12 Jan Frontier Airlines
07 Dec - 09 Jan Delta
09 Dec - 21 Jan Qantas
12 Dec - 12 Jan United
13 Dec - 12 Jan Frontier Airlines
12 Dec - 14 Jan United
07 Dec - 10 Jan Spirit Airlines
29 Dec - 05 Jan United
11 Dec - 10 Jan Qantas
03 Dec - 20 Dec Frontier Airlines
10 Dec - 28 Dec Qantas
09 Dec - 24 Dec Porter Airlines (Canada) Ltd

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

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