Cheapest return flights from Istanbul to Seoul in September from 742€

Best time to book flights for Istanbul (IST) to Seoul (ICN) flights at AirHint

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

Return flights

30 Sep - 16 Oct Air Astana
08 Sep - 22 Sep Air Astana
07 Sep - 22 Sep Air Astana
02 Sep - 18 Sep Air Astana
01 Sep - 08 Sep Air Astana
15 Sep - 21 Sep Air Astana
13 Sep - 21 Sep Air Astana
08 Sep - 23 Sep Air Astana
07 Sep - 23 Sep Air Astana
09 Sep - 23 Sep Air Astana
10 Sep - 23 Sep Air Astana
28 Sep - 21 Oct Emirates
27 Sep - 06 Oct Emirates
30 Sep - 16 Oct Turkish Airlines direct

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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