AirHint found the following cheapest return flights from Istanbul (SAW) to Seoul (ICN) in October 2025 (see full year).

Return flights

21 Oct - 07 Nov	flyadeal
21 Oct - 21 Nov	flyadeal
12 Oct - 23 Oct	Pegasus Airlines
24 Oct - 30 Oct	flyadeal
20 Oct - 27 Oct	flyadeal
21 Oct - 06 Nov	flyadeal
20 Oct - 30 Oct	flyadeal
25 Oct - 03 Nov	Flynas
21 Oct - 28 Oct	flyadeal
24 Oct - 31 Oct	flyadeal
03 Oct - 17 Oct	Flynas
21 Oct - 27 Oct	flyadeal
24 Oct - 28 Oct	flyadeal
24 Oct - 27 Oct	flyadeal
21 Oct - 05 Nov	flyadeal
20 Oct - 06 Nov	flyadeal
24 Oct - 06 Nov	flyadeal
26 Oct - 03 Nov	Flynas
25 Oct - 05 Nov	Flynas
20 Oct - 08 Nov	flyadeal

Also check the deals for one-way flights from Istanbul to Seoul in October.

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 Istanbul to Seoul in October from 479€

Return flights