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

Return flights

19 Jul - 27 Jul	China Southern
01 Jul - 07 Jul	China Southern
03 Jul - 13 Jul	China Southern
01 Jul - 09 Jul	China Southern
19 Jul - 13 Aug	China Southern
10 Jul - 20 Jul	China Southern
15 Jul - 18 Jul	China Southern
20 Jul - 27 Jul	China Southern
13 Jul - 16 Jul	China Southern
20 Jul - 13 Aug	China Southern
26 Jul - 01 Aug	China Southern
23 Jul - 30 Jul	Air China
17 Jul - 25 Jul	China Southern
27 Jul - 01 Aug	China Southern
27 Jul - 10 Aug	China Southern
31 Jul - 09 Aug	EVA Air
29 Jul - 02 Aug	Air China
25 Jul - 02 Aug	Air China
20 Jul - 12 Aug	Air China
21 Jul - 14 Aug	ANA

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

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 July from 561€

Return flights