Cheapest return flights from Seoul to Istanbul in April from 580€

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

Return flights

11 Apr - 19 Apr Air China
20 Apr - 25 Apr China Southern
10 Apr - 18 Apr China Southern
28 Apr - 03 May Air China
30 Apr - 03 May Air China
10 Apr - 14 Apr China Southern
08 Apr - 14 Apr China Southern
20 Apr - 28 Apr China Southern
03 Apr - 09 Apr China Southern
20 Apr - 26 May China Southern
15 Apr - 23 Apr China Southern
30 Apr - 10 May Air China
22 Apr - 25 Apr China Southern
06 Apr - 18 Apr China Southern
27 Apr - 30 May China Southern
22 Apr - 26 May China Southern
21 Apr - 25 May ANA
27 Apr - 28 May China Southern
24 Apr - 30 May China Southern
29 Apr - 05 May China Southern

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

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