Cheapest return flights from Istanbul to Seoul in September from $585

Best time to book flights for Istanbul (IST) to Seoul (GMP) flights at AirHint

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

Return flights

09 Sep - 19 Sep China Southern
22 Sep - 13 Oct China Eastern
30 Sep - 20 Oct China Southern
01 Sep - 30 Sep ANA
29 Sep - 10 Oct ANA
08 Sep - 19 Sep ANA
06 Sep - 19 Sep ANA
01 Sep - 12 Sep ANA
11 Sep - 10 Oct China Southern
02 Sep - 26 Sep China Southern
23 Sep - 29 Sep China Southern
20 Sep - 26 Sep China Southern
01 Sep - 07 Sep ANA
17 Sep - 21 Sep ANA

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

Skyscanner

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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