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

Return flights

27 Nov - 07 Dec	Air China
18 Nov - 21 Nov	Air China
29 Nov - 07 Dec	Air China
05 Nov - 11 Nov	China Southern
07 Nov - 13 Nov	China Southern
07 Nov - 15 Nov	China Southern
10 Nov - 13 Nov	China Southern
05 Nov - 13 Nov	China Southern
03 Nov - 06 Nov	China Southern
03 Nov - 13 Nov	China Southern
29 Nov - 05 Dec	Air China
06 Nov - 12 Nov	Air China
14 Nov - 18 Nov	China Southern
19 Nov - 18 Dec	China Southern
28 Nov - 04 Dec	China Southern
28 Nov - 06 Dec	China Southern
22 Nov - 21 Dec	Air China
28 Nov - 01 Dec	ANA
19 Nov - 17 Dec	ANA
30 Nov - 04 Dec	ANA

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

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 November from 445€

Return flights