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

Return flights

21 Oct - 29 Oct	Air Canada
22 Oct - 04 Nov	Air Canada
20 Oct - 09 Nov	United
18 Oct - 26 Oct	Air Canada
29 Oct - 07 Nov	Air Canada
28 Oct - 13 Nov	Air Canada
15 Oct - 22 Oct	United
01 Oct - 08 Oct	United
31 Oct - 07 Nov	Air Canada
02 Oct - 19 Oct	United
22 Oct - 01 Nov	United
03 Oct - 17 Oct	United
07 Oct - 23 Oct	United
02 Oct - 06 Oct	Air Canada
10 Oct - 13 Oct	Air Canada
07 Oct - 20 Oct	Qantas

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 780€

Return flights