Cheapest return flights from Istanbul to Seoul in September from 505€

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

Return flights

29 Sep - 14 Oct MIAT Mongolian Airlines
22 Sep - 07 Oct Qatar Airways
01 Sep - 07 Oct Qatar Airways
21 Sep - 07 Oct Qatar Airways
21 Sep - 25 Sep Pegasus Airlines
02 Sep - 09 Sep Royal Jordanian
14 Sep - 20 Sep Pegasus Airlines
17 Sep - 01 Oct Qatar Airways
18 Sep - 27 Sep Air Arabia
02 Sep - 06 Sep Qatar Airways
18 Sep - 28 Sep Qatar Airways
26 Sep - 05 Oct Air Astana
20 Sep - 27 Sep Etihad Airways
05 Sep - 12 Sep Qatar Airways
20 Sep - 30 Sep Qatar Airways
01 Sep - 09 Sep Air Astana
30 Sep - 09 Oct Air Astana
08 Sep - 01 Oct Qatar Airways
21 Sep - 07 Oct Korean Air direct
30 Sep - 09 Oct Asiana 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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