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

Return flights

20 Oct - 31 Oct	Frontier Airlines
29 Oct - 11 Nov	Frontier Airlines
31 Oct - 10 Nov	Frontier Airlines
29 Oct - 05 Nov	Air Canada
22 Oct - 01 Nov	Frontier Airlines
20 Oct - 27 Oct	Air Canada
20 Oct - 02 Nov	Air Canada
17 Oct - 02 Nov	jetBlue
02 Oct - 07 Oct	Air Canada
02 Oct - 15 Oct	Air Canada
18 Oct - 24 Oct	Air Canada
21 Oct - 27 Oct	Spirit Airlines
01 Oct - 15 Oct	Air Canada
27 Oct - 01 Nov	jetBlue
15 Oct - 05 Nov	Air Canada
14 Oct - 21 Oct	Air Canada
01 Oct - 18 Oct	Air Canada
18 Oct - 25 Oct	Air Canada
25 Oct - 08 Nov	jetBlue
31 Oct - 22 Nov	jetBlue

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

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from New York to Sydney in October from $1006

Return flights