Cheapest one-way flights from Newark to Sydney in September from $458

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

One-Way flights

13 Sep Frontier Airlines
15 Sep Porter Airlines (Canada) Ltd
01 Sep Alaska Airlines
07 Sep Frontier Airlines
12 Sep jetBlue
05 Sep Porter Airlines (Canada) Ltd
28 Sep jetBlue
30 Sep Hawaiian Airlines
24 Sep United
02 Sep United

Also check the deals for return 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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