Cheapest return flights from Istanbul to Seoul in April from $534

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

Return flights

12 Apr - 20 Apr China Southern
06 Apr - 17 Apr China Southern
09 Apr - 13 Apr China Southern
04 Apr - 08 Apr China Southern
04 Apr - 11 Apr China Southern
04 Apr - 18 Apr China Southern
05 Apr - 12 May MIAT Mongolian Airlines
01 Apr - 07 Apr Etihad Airways
05 Apr - 14 May MIAT Mongolian Airlines
07 Apr - 16 Apr Etihad Airways
14 Apr - 27 Apr MIAT Mongolian Airlines
24 Apr - 06 May LOT
29 Apr - 09 May AirAsia X
14 Apr - 24 Apr Scandinavian Airlines
28 Apr - 11 May China Southern
30 Apr - 07 May Qatar Airways
28 Apr - 08 May Qatar Airways
23 Apr - 10 May Centrum Air
23 Apr - 09 May Centrum Air
23 Apr - 07 May Centrum Air

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