Cheapest return flights from Istanbul to Seoul in September from 385€

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

Return flights

30 Sep - 13 Oct MIAT Mongolian Airlines
30 Sep - 16 Oct MIAT Mongolian Airlines
25 Sep - 06 Oct MIAT Mongolian Airlines
09 Sep - 25 Sep MIAT Mongolian Airlines
24 Sep - 16 Oct China Southern
07 Sep - 21 Sep MIAT Mongolian Airlines
07 Sep - 25 Sep MIAT Mongolian Airlines
30 Sep - 10 Oct MIAT Mongolian Airlines
25 Sep - 07 Oct MIAT Mongolian Airlines
30 Sep - 20 Oct MIAT Mongolian Airlines
25 Sep - 23 Oct MIAT Mongolian Airlines
28 Sep - 26 Oct MIAT Mongolian Airlines
30 Sep - 21 Oct MIAT Mongolian Airlines
11 Sep - 21 Sep Centrum Air
08 Sep - 13 Sep Centrum Air
16 Sep - 25 Sep MIAT Mongolian Airlines
16 Sep - 21 Sep MIAT Mongolian Airlines
11 Sep - 18 Sep Centrum Air
07 Sep - 22 Sep MIAT Mongolian Airlines
11 Sep - 25 Sep Centrum Air

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

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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