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

Return flights

21 Sep - 24 Sep	Jetstar	direct
19 Sep - 24 Sep	Jetstar	direct
19 Sep - 25 Sep	Jetstar
21 Sep - 26 Sep	Jetstar	direct
19 Sep - 30 Sep	Jetstar
28 Sep - 08 Oct	Jetstar	direct
24 Sep - 30 Sep	Jetstar
21 Sep - 30 Sep	Jetstar
19 Sep - 27 Sep	Jetstar
24 Sep - 28 Sep	Jetstar
24 Sep - 03 Oct	Jetstar	direct
21 Sep - 03 Oct	Jetstar	direct
19 Sep - 28 Sep	Jetstar	direct
19 Sep - 01 Oct	Jetstar	direct
28 Sep - 03 Oct	Jetstar	direct
24 Sep - 01 Oct	Jetstar	direct
21 Sep - 05 Oct	Jetstar	direct
24 Sep - 13 Oct	Jetstar
25 Sep - 02 Oct	Hawaiian Airlines	direct
28 Sep - 05 Oct	Jetstar

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

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 Sydney to Honolulu in September from $478

Return flights