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

Return flights

02 Sep - 09 Sep	T'way Air
08 Sep - 14 Sep	Jin Air
24 Sep - 01 Oct	ANA
29 Sep - 15 Oct	ANA
15 Sep - 20 Sep	Eastar Jet
17 Sep - 24 Sep	ANA
03 Sep - 09 Sep	ANA
09 Sep - 16 Sep	ANA
03 Sep - 10 Sep	ANA
02 Sep - 07 Sep	ANA
24 Sep - 29 Sep	ANA
02 Sep - 08 Sep	ANA
21 Sep - 15 Oct	ANA
28 Sep - 01 Oct	ANA
21 Sep - 01 Oct	ANA
10 Sep - 15 Oct	ANA
24 Sep - 02 Oct	ANA
29 Sep - 02 Oct	ANA
26 Sep - 02 Oct	ANA
25 Sep - 12 Oct	Jin Air

Also check the deals for one-way flights from Seoul 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 Seoul to Honolulu in September from $621

Return flights