Cheapest one-way flights from New York to Sydney in December from 485€

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

One-Way flights

10 Dec Frontier Airlines
11 Dec Frontier Airlines
24 Dec Spirit Airlines
07 Dec Spirit Airlines
30 Dec Frontier Airlines
23 Dec Spirit Airlines
31 Dec Frontier Airlines
08 Dec Frontier Airlines
05 Dec Frontier Airlines
04 Dec Frontier Airlines

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

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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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