Cheapest return flights from Seoul to Istanbul in May from 434€

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

Return flights

19 May - 24 May Air China
16 May - 24 May Air China
21 May - 31 May Air China
08 May - 17 May Etihad Airways
21 May - 28 May Etihad Airways
29 May - 06 Jun Etihad Airways
27 May - 06 Jun Etihad Airways
28 May - 04 Jun Etihad Airways
12 May - 19 May Etihad Airways
23 May - 05 Jun Air China
21 May - 25 May China Southern
07 May - 01 Jun China Southern
21 May - 05 Jun Air China
07 May - 12 May Qatar Airways
12 May - 26 May Qatar Airways
12 May - 27 May Qatar Airways
22 May - 02 Jun Qatar Airways
30 May - 07 Jun Etihad Airways
10 May - 02 Jun Etihad Airways
30 May - 03 Jun Qatar Airways

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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