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

Return flights

01 Jun - 08 Jun	Qatar Airways
16 Jun - 22 Jun	Qatar Airways
17 Jun - 23 Jun	Qatar Airways
01 Jun - 15 Jun	Qatar Airways
05 Jun - 24 Jun	Qatar Airways
16 Jun - 26 Jun	Qatar Airways
01 Jun - 12 Jun	Qatar Airways
01 Jun - 09 Jun	Qatar Airways
18 Jun - 23 Jun	Qatar Airways
01 Jun - 05 Jun	Qatar Airways

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 545€

Return flights