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

Return flights

03 Apr - 18 Apr	AirAsia X
11 Apr - 25 Apr	AZAL
11 Apr - 26 Apr	AZAL
24 Apr - 08 May	AirAsia X
15 Apr - 30 Apr	AirAsia X
26 Apr - 03 May	AirAsia X
26 Apr - 05 May	Qatar Airways
01 Apr - 08 Apr	Qatar Airways
04 Apr - 15 Apr	Qatar Airways
13 Apr - 24 May	Qatar Airways
07 Apr - 22 Apr	Qatar Airways
08 Apr - 22 Apr	Qatar Airways
09 Apr - 16 Apr	Qatar Airways
01 Apr - 11 Apr	Qatar Airways
20 Apr - 01 May	Qatar Airways
20 Apr - 04 May	Emirates

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

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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Cheapest return flights from Istanbul to Seoul in April from 611€

Return flights