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

Return flights

29 Oct - 11 Nov	jetBlue
24 Oct - 31 Oct	Frontier Airlines
20 Oct - 27 Oct	Air Canada
23 Oct - 27 Oct	jetBlue
17 Oct - 02 Nov	jetBlue
23 Oct - 26 Oct	Air Canada
18 Oct - 29 Oct	Air Canada
22 Oct - 07 Nov	Air Canada
30 Oct - 15 Nov	Air Canada
21 Oct - 27 Oct	Austrian Airlines
19 Oct - 02 Nov	Air Canada
15 Oct - 27 Oct	Air Canada
15 Oct - 26 Oct	Air Canada
25 Oct - 08 Nov	Air Canada
25 Oct - 01 Nov	Air Canada
24 Oct - 08 Nov	Air Canada
22 Oct - 01 Nov	Austrian Airlines
17 Oct - 25 Oct	Hawaiian Airlines
17 Oct - 26 Oct	Air Canada
31 Oct - 13 Nov	Air Canada

Also check the deals for one-way flights from Newark 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.

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Cheapest return flights from Newark to Sydney in October from $1043

Return flights