Cheapest return flights from Seoul to Istanbul in May from 580€

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

Return flights

26 May - 02 Jun Air China
16 May - 31 May Air China
16 May - 28 May Air China
18 May - 29 May Air China
19 May - 22 May Air China
18 May - 26 May Air China
20 May - 31 May Air China
12 May - 22 May Air China
25 May - 28 May Air China
11 May - 14 May Air China
20 May - 29 May Air China
27 May - 12 Jun Air China
27 May - 07 Jun Air China
25 May - 05 Jun Air China
11 May - 03 Jun Air China
13 May - 30 Jun Air China
31 May - 13 Jun China Southern
25 May - 25 Jun China Southern
31 May - 08 Jun China Southern
31 May - 25 Jun China Southern

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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