Cheapest return flights from Newark to Sydney in September from $982

Best time to book flights for Newark (EWR) to Sydney (SYD) flights at AirHint

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

Return flights

09 Sep - 17 Sep Spirit Airlines
02 Sep - 14 Sep Spirit Airlines
02 Sep - 13 Sep jetBlue
10 Sep - 23 Sep Spirit Airlines
04 Sep - 28 Sep Spirit Airlines
03 Sep - 16 Sep Alaska Airlines
01 Sep - 05 Sep jetBlue
20 Sep - 24 Oct Alaska Airlines
11 Sep - 22 Sep Spirit Airlines
01 Sep - 14 Oct Alaska Airlines
20 Sep - 23 Oct Alaska Airlines
15 Sep - 26 Sep Spirit Airlines
19 Sep - 23 Oct Alaska Airlines
06 Sep - 19 Sep Spirit Airlines

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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