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

Return flights

23 Sep - 23 Sep	Southwest Airlines	direct
30 Sep - 02 Oct	Southwest Airlines	direct
23 Sep - 24 Sep	Southwest Airlines	direct
29 Sep - 06 Oct	Southwest Airlines	direct
29 Sep - 29 Sep	Southwest Airlines	direct
23 Sep - 25 Sep	Southwest Airlines	direct
27 Sep - 28 Sep	Southwest Airlines	direct
26 Sep - 03 Oct	Southwest Airlines	direct

Also check the deals for one-way flights from Kona 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 Kona to Honolulu in September from 136€

Return flights