Cheapest return flights from Seoul to Istanbul in September from 521€

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

18 Sep - 23 Sep Etihad Airways
17 Sep - 23 Sep China Southern
03 Sep - 11 Sep China Southern
03 Sep - 10 Sep China Southern
08 Sep - 16 Sep China Southern
12 Sep - 19 Sep China Southern
19 Sep - 23 Sep China Southern
01 Sep - 04 Sep China Southern
15 Sep - 24 Sep China Southern
01 Sep - 08 Sep China Southern
25 Sep - 14 Oct China Southern
15 Sep - 15 Oct China Southern
19 Sep - 15 Oct China Southern
19 Sep - 20 Oct China Southern
19 Sep - 14 Oct China Southern
19 Sep - 16 Oct China Southern
17 Sep - 15 Oct China Southern
24 Sep - 18 Oct China Southern
14 Sep - 15 Oct China Southern
20 Sep - 15 Oct Singapore 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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