Cheapest return flights from Seoul to Istanbul in September from $414

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

Return flights

02 Sep - 24 Sep China Eastern
01 Sep - 30 Sep China Eastern
25 Sep - 14 Oct China Eastern
19 Sep - 24 Sep China Eastern
16 Sep - 25 Sep China Eastern
03 Sep - 09 Sep China Eastern
04 Sep - 18 Sep China Eastern
04 Sep - 16 Sep China Eastern
22 Sep - 25 Sep MIAT Mongolian Airlines
05 Sep - 18 Sep China Eastern
18 Sep - 25 Sep China Eastern
10 Sep - 02 Oct MIAT Mongolian Airlines
23 Sep - 14 Oct China Eastern
15 Sep - 30 Oct Emirates
22 Sep - 01 Oct Emirates
22 Sep - 24 Oct Emirates
23 Sep - 02 Oct Emirates
24 Sep - 01 Oct Emirates
16 Sep - 02 Oct Emirates
11 Sep - 02 Oct MIAT Mongolian Airlines

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