Cheapest return flights from Istanbul to Seoul in May from $544

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

Return flights

19 May - 31 May MIAT Mongolian Airlines
18 May - 26 May AirAsia X
02 May - 15 May China Southern
19 May - 26 May LOT
12 May - 19 May LOT
18 May - 28 May China Southern
20 May - 28 May China Southern
22 May - 28 May China Southern
15 May - 22 May China Southern
19 May - 29 May China Southern
23 May - 03 Jun Etihad Airways
30 May - 13 Jun Etihad Airways
30 May - 13 Jun Asiana Airlines direct
23 May - 10 Jun Asiana Airlines direct
28 May - 02 Jun Asiana Airlines direct
23 May - 03 Jun Asiana Airlines direct
28 May - 04 Jun China Southern
28 May - 04 Jun Turkish Airlines direct

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

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.