Cheapest return flights from Istanbul to Seoul in October from $589

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

Return flights

19 Oct - 27 Oct MIAT Mongolian Airlines
28 Oct - 30 Nov China Southern
21 Oct - 26 Oct MIAT Mongolian Airlines
19 Oct - 26 Oct MIAT Mongolian Airlines
29 Oct - 07 Nov China Southern
28 Oct - 31 Oct China Southern
21 Oct - 27 Oct China Southern
21 Oct - 31 Oct China Southern
21 Oct - 30 Oct MIAT Mongolian Airlines
02 Oct - 14 Oct MIAT Mongolian Airlines
18 Oct - 31 Oct Pegasus Airlines
19 Oct - 30 Oct MIAT Mongolian Airlines
14 Oct - 09 Nov China Southern
14 Oct - 11 Nov China Southern
22 Oct - 09 Nov China Southern
22 Oct - 11 Nov China Southern
24 Oct - 09 Nov China Southern
24 Oct - 11 Nov China Southern
30 Oct - 27 Nov China Southern
30 Oct - 30 Nov China Southern

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

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.