Cheapest return flights from Seoul to Istanbul in May from 433€

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

Return flights

23 May - 31 May Air China
20 May - 23 May China Southern
13 May - 23 May China Southern
15 May - 23 May China Southern
16 May - 24 May Air China
20 May - 28 May China Southern
18 May - 26 May China Southern
25 May - 02 Jun China Southern
11 May - 19 May China Southern
08 May - 16 May China Southern
13 May - 26 May China Southern
30 May - 03 Jun ANA
30 May - 06 Jun ANA
23 May - 02 Jun ANA

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