Cheapest return flights from Istanbul to Seoul in May from 438€

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

Return flights

21 May - 30 May MIAT Mongolian Airlines
19 May - 02 Jun MIAT Mongolian Airlines
10 May - 12 May MIAT Mongolian Airlines
26 May - 01 Jun MIAT Mongolian Airlines
10 May - 13 May MIAT Mongolian Airlines
24 May - 02 Jun MIAT Mongolian Airlines
24 May - 28 May MIAT Mongolian Airlines
28 May - 03 Jun MIAT Mongolian Airlines
17 May - 24 May MIAT Mongolian Airlines
12 May - 24 May MIAT Mongolian Airlines
17 May - 29 May MIAT Mongolian Airlines
13 May - 20 May China Southern
11 May - 26 May LOT
20 May - 30 May AirAsia X
25 May - 08 Jun LOT
26 May - 08 Jun LOT
29 May - 08 Jun Etihad Airways
24 May - 03 Jun LOT
24 May - 04 Jun LOT
25 May - 03 Jun LOT

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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