Cheapest return flights from Seoul to Istanbul in May from 365€

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

Return flights

10 May - 31 May MIAT Mongolian Airlines
12 May - 31 May MIAT Mongolian Airlines
12 May - 27 May Air China
16 May - 31 May Air China
26 May - 31 May Air China
23 May - 31 May Air China
23 May - 29 May Air China
26 May - 12 Jun Air China
03 May - 14 Jun MIAT Mongolian Airlines
21 May - 29 May Air China
22 May - 25 May China Southern
23 May - 30 May China Southern
25 May - 01 Jun China Southern
23 May - 01 Jun China Southern
09 May - 02 Jun China Southern
23 May - 02 Jun China Southern
25 May - 11 Jun China Southern
08 May - 06 Jun China Southern
23 May - 06 Jun China Southern
12 May - 02 Jun Qatar Airways

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

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