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

Return flights

27 Oct - 29 Nov	Flynas
27 Oct - 30 Oct	Flynas
28 Oct - 07 Nov	Air Arabia Abu Dhabi
31 Oct - 10 Nov	Flynas
27 Oct - 03 Nov	Flynas
27 Oct - 31 Oct	Flynas
26 Oct - 10 Nov	Flynas
26 Oct - 11 Nov	Flynas
28 Oct - 18 Nov	Flynas
26 Oct - 04 Nov	Flynas
28 Oct - 05 Nov	Pegasus Airlines
26 Oct - 06 Nov	Flynas
22 Oct - 28 Oct	Pegasus Airlines
22 Oct - 31 Oct	Pegasus Airlines
28 Oct - 30 Oct	Flynas
17 Oct - 30 Oct	AJet
25 Oct - 30 Oct	Pegasus Airlines
18 Oct - 28 Oct	AJet
21 Oct - 28 Oct	Pegasus Airlines
19 Oct - 30 Oct	Jazeera Airways

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 504€

Return flights