AirHint found the following cheapest one-way flights from Honolulu (HNL) to Sydney (SYD) in December 2025 (see full year).

One-Way flights

01 Dec	Korean Air
04 Dec	Hawaiian Airlines
13 Dec	Alaska Airlines
08 Dec	Hawaiian Airlines
02 Dec	Hawaiian Airlines
03 Dec	Hawaiian Airlines
10 Dec	Alaska Airlines
12 Dec	Alaska Airlines
23 Dec	Fiji Airways
05 Dec	Alaska Airlines

Also check the deals for return flights from Honolulu to Sydney in December.

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 one-way flights from Honolulu to Sydney in December from 446€

One-Way flights