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

Return flights

26 Jan - 13 Feb	Qantas
30 Jan - 01 Feb	Spirit Airlines
16 Jan - 24 Jan	Air Canada
22 Jan - 29 Jan	Delta
19 Jan - 29 Jan	Air Canada
22 Jan - 09 Feb	Spirit Airlines
01 Jan - 22 Jan	Air Canada
16 Jan - 22 Jan	Air Canada
12 Jan - 24 Jan	Frontier Airlines
11 Jan - 09 Feb	Frontier Airlines
14 Jan - 23 Jan	Frontier Airlines
13 Jan - 18 Jan	Spirit Airlines
13 Jan - 22 Jan	Spirit Airlines
09 Jan - 17 Jan	Frontier Airlines

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

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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Cheapest return flights from New York to Sydney in January from 909€

Return flights