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

Return flights

10 Jun - 14 Jun	Air China
04 Jun - 14 Jun	Air China
04 Jun - 17 Jun	Air China
06 Jun - 17 Jun	Air China
11 Jun - 18 Jun	Air China
01 Jun - 10 Jun	Air China
01 Jun - 14 Jun	Air China
18 Jun - 24 Jun	Air China
01 Jun - 15 Jun	China Southern
01 Jun - 08 Jun	China Southern
28 Jun - 11 Jul	China Southern
27 Jun - 05 Jul	Air China
28 Jun - 04 Jul	China Southern
21 Jun - 04 Jul	China Southern
29 Jun - 27 Jul	China Southern
23 Jun - 02 Jul	Air China
27 Jun - 04 Jul	ANA
04 Jun - 04 Jul	ANA
26 Jun - 03 Jul	ANA
28 Jun - 05 Jul	ANA

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

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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Cheapest return flights from Seoul to Istanbul in June from 426€

Return flights