Cheapest return flights from Newark to Sydney in September from $945

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

Return flights

23 Sep - 08 Oct Frontier Airlines
13 Sep - 16 Sep Frontier Airlines
12 Sep - 15 Sep Frontier Airlines
10 Sep - 23 Sep Air Canada
08 Sep - 15 Sep Air Canada
09 Sep - 14 Sep Air Canada
16 Sep - 30 Sep Air Canada
23 Sep - 14 Oct Air Canada
27 Sep - 07 Oct Hawaiian Airlines
23 Sep - 09 Oct Air Canada
10 Sep - 14 Sep Austrian Airlines
24 Sep - 14 Oct Spirit Airlines
22 Sep - 26 Sep jetBlue
12 Sep - 19 Sep Spirit Airlines
17 Sep - 25 Sep Korean Air
25 Sep - 06 Oct jetBlue

Also check the deals for one-way flights from Newark to Sydney in September.

Skyscanner

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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