Cheapest return flights from Seoul to Istanbul in September from $533

AirHint found the following cheapest return flights from Seoul (ICN) to Istanbul (IST) in September 2026 (see full year).

Return flights

24 Sep - 04 Oct MIAT Mongolian Airlines
05 Sep - 13 Sep Air China
12 Sep - 20 Sep Air China
12 Sep - 18 Sep Air China
01 Sep - 22 Sep Etihad Airways
02 Sep - 07 Sep China Southern
10 Sep - 15 Sep China Southern
30 Sep - 13 Oct Qatar Airways
04 Sep - 11 Sep China Southern
11 Sep - 18 Sep Singapore Airlines
09 Sep - 13 Sep Singapore Airlines
04 Sep - 13 Sep Singapore Airlines
30 Sep - 10 Oct Qatar Airways
30 Sep - 09 Oct Qatar Airways
19 Sep - 04 Oct Air China
28 Sep - 07 Oct Emirates
24 Sep - 10 Oct Qatar Airways
30 Sep - 04 Oct Qatar Airways
24 Sep - 09 Oct Qatar Airways
28 Sep - 05 Oct Etihad Airways

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

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