Cheapest return flights from Istanbul to Seoul in September from $632

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

Return flights

07 Sep - 07 Sep Turkmenistan Airlines
21 Sep - 28 Sep Turkmenistan Airlines
13 Sep - 21 Sep Turkmenistan Airlines
07 Sep - 28 Sep Turkmenistan Airlines
03 Sep - 15 Sep Centrum Air
17 Sep - 30 Sep Centrum Air
16 Sep - 30 Sep AJet
20 Sep - 29 Sep AJet
07 Sep - 13 Sep AJet
08 Sep - 29 Sep AJet
24 Sep - 04 Oct Air Astana
30 Sep - 11 Oct AJet
01 Sep - 01 Oct Air Astana
23 Sep - 02 Oct Air Astana
22 Sep - 13 Oct MIAT Mongolian Airlines
22 Sep - 07 Oct MIAT Mongolian Airlines
28 Sep - 07 Oct Uzbekistan Airways
21 Sep - 01 Oct Etihad Airways
01 Sep - 01 Oct Turkish Airlines direct
23 Sep - 02 Oct Turkish Airlines direct

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

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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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