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

Return flights

19 Oct - 24 Oct	Jetstar	direct
17 Oct - 24 Oct	Jetstar	direct
19 Oct - 26 Oct	Jetstar
19 Oct - 25 Oct	Jetstar
17 Oct - 25 Oct	Jetstar
23 Oct - 14 Nov	Fiji Airways
19 Oct - 26 Oct	Jetstar	direct
15 Oct - 26 Oct	Jetstar
14 Oct - 25 Oct	Philippine Airlines
23 Oct - 14 Nov	Hawaiian Airlines	direct
19 Oct - 25 Oct	Qantas	direct
15 Oct - 26 Oct	Qantas	direct

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

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 Honolulu to Sydney in October from $312

Return flights