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

Return flights

09 Aug - 16 Aug	Alaska Airlines
01 Aug - 23 Aug	Alaska Airlines
18 Aug - 28 Aug	Asiana Airlines
25 Aug - 16 Sep	Air Premia
16 Aug - 27 Aug	Alaska Airlines	direct
14 Aug - 21 Aug	WestJet
01 Aug - 23 Aug	Asiana Airlines	direct
11 Aug - 15 Aug	Air Premia	direct
18 Aug - 28 Aug	Asiana Airlines	direct
11 Aug - 17 Aug	Asiana Airlines	direct
25 Aug - 31 Aug	Asiana Airlines	direct
25 Aug - 16 Sep	Korean Air	direct

Also check the deals for one-way flights from Honolulu to Seoul in August.

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 Seoul in August from $732

Return flights