Cheapest return flights from Istanbul to Seoul in October from $499

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

Return flights

02 Oct - 17 Oct China Southern
21 Oct - 29 Oct MIAT Mongolian Airlines
01 Oct - 10 Oct China Southern
02 Oct - 24 Oct China Southern
01 Oct - 16 Oct China Southern
02 Oct - 26 Nov China Southern
02 Oct - 31 Oct China Southern
01 Oct - 14 Oct China Southern
02 Oct - 14 Oct China Southern
01 Oct - 13 Oct China Southern
01 Oct - 22 Oct China Southern
21 Oct - 29 Nov MIAT Mongolian Airlines
21 Oct - 01 Nov MIAT Mongolian Airlines
30 Oct - 15 Nov MIAT Mongolian Airlines
30 Oct - 08 Nov MIAT Mongolian Airlines
23 Oct - 01 Nov MIAT Mongolian Airlines
30 Oct - 29 Nov MIAT Mongolian Airlines
19 Oct - 29 Nov MIAT Mongolian Airlines
19 Oct - 15 Nov MIAT Mongolian Airlines
19 Oct - 23 Nov MIAT Mongolian Airlines

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

Skyscanner

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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