Cheapest return flights from Seoul to Istanbul in May from $492

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

Return flights

27 May - 06 Jun China Southern
18 May - 04 Jun China Southern
20 May - 04 Jun China Southern
20 May - 30 May China Southern
27 May - 08 Jun China Southern
25 May - 13 Jun China Southern
25 May - 08 Jun China Southern
24 May - 06 Jun China Southern
20 May - 01 Jun China Southern
17 May - 30 May China Southern
25 May - 01 Jun China Southern
27 May - 01 Jun China Southern
24 May - 30 May China Southern
14 May - 19 May Air China
14 May - 21 May Air China
19 May - 22 May Air China
16 May - 21 May Air China
16 May - 22 May Air China
23 May - 27 May Air China
19 May - 26 May Air China

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

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