Cheapest return flights from Seoul to Istanbul in September from $544

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

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

Return flights

02 Sep - 30 Sep Etihad Airways
02 Sep - 10 Sep KLM
04 Sep - 14 Sep Etihad Airways
11 Sep - 14 Sep Etihad Airways
03 Sep - 14 Sep Etihad Airways
11 Sep - 02 Oct Etihad Airways
11 Sep - 21 Sep Air China
11 Sep - 19 Sep Air China
01 Sep - 23 Sep Etihad Airways
10 Sep - 17 Sep China Southern
07 Sep - 29 Oct China Southern
05 Sep - 14 Sep Etihad Airways
03 Sep - 22 Oct China Southern
05 Sep - 26 Oct Etihad Airways
15 Sep - 15 Oct China Southern
17 Sep - 02 Oct Emirates
26 Sep - 04 Oct Etihad Airways
03 Sep - 22 Oct Asiana Airlines direct
25 Sep - 04 Oct Air Astana
25 Sep - 15 Oct Air Astana

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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