Cheapest return flights from Istanbul to Seoul in April from $507

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

Return flights

19 Apr - 03 May Scat Airlines
20 Apr - 11 May China Southern
24 Apr - 09 May China Southern
24 Apr - 03 May China Southern
26 Apr - 10 May MIAT Mongolian Airlines
26 Apr - 09 May MIAT Mongolian Airlines
10 Apr - 10 May China Southern
02 Apr - 13 Apr MIAT Mongolian Airlines
17 Apr - 15 May China Southern
19 Apr - 26 Apr MIAT Mongolian Airlines
16 Apr - 26 Apr MIAT Mongolian Airlines
07 Apr - 16 Apr Air China
05 Apr - 18 Apr Air China
04 Apr - 15 May Pegasus Airlines
12 Apr - 18 Apr Scat Airlines
07 Apr - 10 May Flynas
05 Apr - 11 Apr Air China
05 Apr - 16 Apr Air China
05 Apr - 14 Apr Air China
05 Apr - 13 Apr Air China

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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