Cheapest return flights from Seoul to Istanbul in September from 345€

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

Return flights

02 Sep - 05 Sep China Eastern
08 Sep - 13 Sep China Southern
08 Sep - 18 Sep China Eastern
16 Sep - 23 Sep MIAT Mongolian Airlines
23 Sep - 25 Sep MIAT Mongolian Airlines
22 Sep - 24 Sep China Eastern
21 Sep - 24 Sep China Eastern
13 Sep - 22 Sep China Eastern
09 Sep - 30 Sep MIAT Mongolian Airlines
19 Sep - 24 Sep China Eastern
23 Sep - 30 Oct Etihad Airways
23 Sep - 23 Oct Etihad Airways
01 Sep - 01 Oct China Southern
03 Sep - 28 Oct Emirates
22 Sep - 02 Oct Emirates
03 Sep - 29 Oct Emirates
19 Sep - 20 Oct Etihad Airways
02 Sep - 02 Oct Etihad Airways
02 Sep - 28 Oct Etihad Airways
04 Sep - 28 Oct Etihad Airways

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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