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

Return flights

20 Jan - 04 Feb	Delta
30 Jan - 10 Feb	Delta
22 Jan - 02 Feb	Delta
13 Jan - 03 Feb	Qantas
30 Jan - 15 Feb	Delta
16 Jan - 25 Jan	Delta
09 Jan - 13 Jan	jetBlue
16 Jan - 24 Jan	Alaska Airlines
03 Jan - 23 Jan	Frontier Airlines
03 Jan - 14 Feb	Frontier Airlines
08 Jan - 15 Jan	Frontier Airlines
12 Jan - 19 Jan	Frontier Airlines
05 Jan - 14 Feb	Frontier Airlines
08 Jan - 27 Jan	Frontier Airlines
04 Jan - 14 Feb	Frontier Airlines
02 Jan - 17 Jan	Frontier Airlines
12 Jan - 16 Jan	Frontier Airlines
01 Jan - 11 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 857€

Return flights