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

Return flights

18 Sep - 21 Sep	Air India
18 Sep - 25 Sep	Air India
22 Sep - 09 Oct	AirAsia
21 Sep - 09 Oct	AirAsia
18 Sep - 09 Oct	AirAsia
21 Sep - 15 Oct	SriLankan Airlines
30 Sep - 19 Oct	AirAsia
22 Sep - 12 Oct	AirAsia
22 Sep - 07 Oct	AirAsia
21 Sep - 12 Oct	AirAsia
21 Sep - 07 Oct	AirAsia
19 Sep - 09 Oct	AirAsia
22 Sep - 29 Sep	AirAsia
22 Sep - 25 Sep	AirAsia
21 Sep - 29 Sep	AirAsia
21 Sep - 25 Sep	AirAsia
22 Sep - 30 Sep	AirAsia
21 Sep - 30 Sep	AirAsia
18 Sep - 29 Sep	AirAsia
18 Sep - 30 Sep	AirAsia

Also check the deals for one-way flights from Kochi 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 Kochi to Seoul in September from 390€

Return flights