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

Return flights

10 Sep - 17 Sep	HK Express
24 Sep - 30 Sep	Philippine Airlines
05 Sep - 10 Sep	Hong Kong Airlines
16 Sep - 21 Sep	Asiana Airlines
19 Sep - 26 Sep	Asiana Airlines
19 Sep - 23 Sep	Asiana Airlines
19 Sep - 22 Sep	Asiana Airlines
03 Sep - 06 Sep	United
05 Sep - 13 Sep	Philippine Airlines
05 Sep - 14 Sep	Philippine Airlines
28 Sep - 05 Oct	Philippine Airlines
30 Sep - 08 Oct	United
28 Sep - 03 Oct	United
20 Sep - 04 Oct	United
27 Sep - 08 Oct	United
29 Sep - 08 Oct	United
29 Sep - 07 Oct	United
30 Sep - 07 Oct	United

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Honolulu in September from $676

Return flights