AirHint found the following cheapest return flights from Phuket (HKT) to Seoul (ICN) in September 2025 (see full year).

Return flights

27 Sep - 14 Oct	Thai AirAsia
06 Sep - 08 Sep	Thai AirAsia
06 Sep - 10 Sep	Thai AirAsia
02 Sep - 06 Sep	Thai AirAsia
02 Sep - 08 Sep	Thai AirAsia
02 Sep - 10 Sep	Thai AirAsia
04 Sep - 06 Sep	Thai AirAsia
04 Sep - 08 Sep	Thai AirAsia
04 Sep - 10 Sep	Thai AirAsia
27 Sep - 12 Oct	Thai AirAsia
27 Sep - 11 Oct	Thai AirAsia
23 Sep - 14 Oct	Thai AirAsia
23 Sep - 12 Oct	Thai AirAsia
23 Sep - 11 Oct	Thai AirAsia
25 Sep - 14 Oct	Thai AirAsia
25 Sep - 12 Oct	Thai AirAsia
25 Sep - 11 Oct	Thai AirAsia
28 Sep - 14 Oct	Thai AirAsia
18 Sep - 26 Sep	Thai AirAsia
18 Sep - 21 Sep	Thai AirAsia

Also check the deals for one-way flights from Phuket to Seoul 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 Phuket to Seoul in September from $235

Return flights