Cheapest return flights from Seoul to Istanbul in April from $504

Best time to book flights for Seoul (GMP) to Istanbul (IST) flights at AirHint

AirHint found the following cheapest return flights from Seoul (GMP) to Istanbul (IST) in April 2025 (see full year).

Return flights

05 Apr - 20 Apr China Eastern
22 Apr - 08 May China Eastern
02 Apr - 10 Apr China Southern
02 Apr - 15 Apr China Southern
02 Apr - 08 Apr China Southern
21 Apr - 28 Apr China Eastern
02 Apr - 05 Apr China Southern
02 Apr - 12 Apr China Southern
09 Apr - 15 Apr China Southern
16 Apr - 24 Apr China Southern
16 Apr - 22 Apr China Southern
28 Apr - 11 May Korean Air
20 Apr - 12 May ANA
25 Apr - 08 May China Southern
28 Apr - 06 May China Southern
30 Apr - 08 May China Southern
27 Apr - 03 May ANA
22 Apr - 31 May ANA
26 Apr - 04 May Air China
26 Apr - 07 May Air China

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