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

Return flights

26 Jun - 05 Jul	China Eastern
30 Jun - 22 Jul	China Southern
24 Jun - 01 Jul	China Eastern
24 Jun - 21 Jul	Air China
26 Jun - 21 Jul	Air China
30 Jun - 29 Jul	China Southern
30 Jun - 15 Jul	China Southern
25 Jun - 22 Jul	China Southern
30 Jun - 03 Jul	China Southern
25 Jun - 03 Jul	China Southern
20 Jun - 24 Jun	China Southern
20 Jun - 23 Jun	ANA
24 Jun - 30 Jun	ANA
20 Jun - 28 Jun	China Southern
23 Jun - 28 Jun	China Southern
25 Jun - 28 Jun	China Southern
24 Jun - 28 Jun	ANA
18 Jun - 28 Jun	China Southern
18 Jun - 21 Jun	China Southern
25 Jun - 30 Jun	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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Seoul to Istanbul in June from $768

Return flights