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

Return flights

17 Sep - 15 Oct	Jetstar	direct
17 Sep - 21 Sep	Jetstar	direct
24 Sep - 17 Oct	Jetstar	direct
21 Sep - 28 Sep	Jetstar	direct
26 Sep - 15 Oct	Jetstar	direct
19 Sep - 26 Sep	Jetstar	direct
17 Sep - 25 Sep	Jetstar
20 Sep - 27 Sep	Alaska Airlines	direct
17 Sep - 25 Sep	Alaska Airlines	direct
29 Sep - 02 Oct	Hawaiian Airlines	direct
17 Sep - 20 Sep	Hawaiian Airlines	direct
30 Sep - 09 Oct	Fiji Airways
30 Sep - 03 Oct	Philippine Airlines

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

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Honolulu to Sydney in September from $325

Return flights