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

Return flights

21 Sep - 05 Oct	Qatar Airways
20 Sep - 17 Oct	Qatar Airways
04 Sep - 11 Sep	Qatar Airways
01 Sep - 05 Sep	Qatar Airways
07 Sep - 20 Sep	Air Arabia
02 Sep - 12 Sep	Qatar Airways
06 Sep - 21 Sep	Air Arabia
24 Sep - 04 Oct	Pegasus Airlines
25 Sep - 05 Oct	Pegasus Airlines
11 Sep - 19 Sep	Pegasus Airlines
18 Sep - 28 Sep	Qatar Airways
19 Sep - 30 Sep	Qatar Airways
05 Sep - 16 Sep	Qatar Airways
13 Sep - 27 Sep	Qatar Airways
26 Sep - 05 Oct	Kuwait Airways
23 Sep - 02 Oct	Qatar Airways
26 Sep - 03 Oct	Qatar Airways

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

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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Cheapest return flights from Istanbul to Seoul in September from 570€

Return flights