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

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

Return flights

04 Apr - 12 Apr Air China
09 Apr - 17 Apr Air China
04 Apr - 10 Apr Air China
18 Apr - 24 Apr Air China
14 Apr - 24 Apr Air China
21 Apr - 26 Apr Air China
14 Apr - 22 Apr Air China
01 Apr - 05 Apr Etihad Airways
04 Apr - 11 Apr Etihad Airways
08 Apr - 14 Apr Etihad Airways
30 Apr - 14 May Etihad Airways
30 Apr - 04 May Etihad Airways
30 Apr - 16 May Etihad Airways
28 Apr - 04 May Etihad Airways
25 Apr - 03 May Etihad Airways
23 Apr - 25 May Qatar Airways
26 Apr - 03 May Singapore Airlines
28 Apr - 05 May Etihad Airways
25 Apr - 02 May Etihad Airways
29 Apr - 13 May Qatar Airways

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

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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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