Cheapest return flights from Seoul to Istanbul in April from 687€

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

Return flights

28 Apr - 10 May Air China
30 Apr - 05 May Air China
28 Apr - 03 May Air China
28 Apr - 05 May Air China
27 Apr - 06 May Air China
22 Apr - 02 May China Southern
19 Apr - 23 Apr China Southern
19 Apr - 27 Apr China Southern
19 Apr - 25 Apr China Southern
29 Apr - 12 May China Southern
26 Apr - 09 May China Southern
22 Apr - 07 May China Southern
29 Apr - 02 May China Southern
15 Apr - 21 Apr China Southern
24 Apr - 27 Apr China Southern
17 Apr - 20 Apr China Southern
20 Apr - 23 Apr China Southern
17 Apr - 25 Apr China Southern
20 Apr - 25 Apr China Southern
19 Apr - 21 Apr China Southern

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

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