Cheapest return flights from Istanbul to Seoul in May from $516

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

Return flights

31 May - 14 Jun MIAT Mongolian Airlines
12 May - 18 May China Southern
12 May - 26 May MIAT Mongolian Airlines
28 May - 15 Jun MIAT Mongolian Airlines
22 May - 07 Jun China Southern
22 May - 25 May China Southern
10 May - 17 May MIAT Mongolian Airlines
24 May - 03 Jun Scat Airlines
28 May - 04 Jun MIAT Mongolian Airlines
10 May - 18 May MIAT Mongolian Airlines
10 May - 16 May MIAT Mongolian Airlines
10 May - 15 May MIAT Mongolian Airlines
31 May - 15 Jun MIAT Mongolian Airlines
31 May - 08 Jun MIAT Mongolian Airlines
03 May - 17 May China Southern
14 May - 17 May MIAT Mongolian Airlines
14 May - 18 May MIAT Mongolian Airlines
12 May - 14 Jun Pegasus Airlines
12 May - 15 Jun Pegasus Airlines
29 May - 06 Jun China Southern

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

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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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