Cheapest return flights from Seoul to Istanbul in September from 613€

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

17 Sep - 23 Sep China Southern
09 Sep - 18 Sep China Southern
25 Sep - 14 Oct China Southern
03 Sep - 10 Sep China Southern
12 Sep - 20 Sep China Southern
17 Sep - 21 Sep Etihad Airways
22 Sep - 13 Oct Singapore Airlines
24 Sep - 01 Oct Singapore Airlines
01 Sep - 26 Sep Emirates
06 Sep - 13 Sep Air Astana
20 Sep - 06 Oct Air Astana
21 Sep - 28 Sep Air Astana
27 Sep - 04 Oct Thai Airways
27 Sep - 05 Oct Thai Airways
27 Sep - 14 Oct Thai Airways
25 Sep - 12 Oct Singapore Airlines
29 Sep - 05 Oct Thai Airways
27 Sep - 16 Oct Thai Airways
12 Sep - 20 Sep Korean Air direct
01 Sep - 26 Sep Korean Air direct

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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