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

Return flights

29 Sep - 10 Oct	AirAsia
23 Sep - 10 Oct	AirAsia
27 Sep - 10 Oct	AirAsia
29 Sep - 15 Oct	AirAsia
01 Sep - 06 Sep	Air India
23 Sep - 29 Sep	AirAsia
20 Sep - 10 Oct	AirAsia
23 Sep - 27 Sep	AirAsia
23 Sep - 25 Sep	AirAsia
27 Sep - 15 Oct	AirAsia
29 Sep - 30 Sep	AirAsia
23 Sep - 30 Sep	AirAsia
17 Sep - 29 Sep	AirAsia
20 Sep - 29 Sep	AirAsia
27 Sep - 27 Sep	Batik Air Malaysia
17 Sep - 27 Sep	AirAsia
29 Sep - 01 Oct	AirAsia
29 Sep - 05 Oct	AirAsia
23 Sep - 01 Oct	AirAsia
23 Sep - 05 Oct	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 371€

Return flights