Cheapest one-way flights from New York to Sydney in December from $489

AirHint found the following cheapest one-way flights from New York (NYC) to Sydney (SYD) in December 2025 (see full year).

One-Way flights

06 Dec Frontier Airlines
09 Dec Alaska Airlines
08 Dec Hawaiian Airlines
11 Dec Sun Country Airlines
03 Dec Hawaiian Airlines
10 Dec ANA
13 Dec Spirit Airlines
24 Dec Norse Atlantic Airways (UK)
12 Dec Alaska Airlines
30 Dec Kuwait Airways

Also check the deals for return flights from New York to Sydney in December.

Skyscanner

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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