AirHint found the following cheapest return flights from Istanbul (IST) to Seoul (ICN)
in April 2025 (see full year ).
Return flights
15 Apr
- 23 Apr
MIAT Mongolian Airlines
519 €
13 Apr
- 23 Apr
MIAT Mongolian Airlines
555 €
15 Apr
- 26 Apr
MIAT Mongolian Airlines
555 €
15 Apr
- 27 Apr
MIAT Mongolian Airlines
555 €
01 Apr
- 15 May
China Southern
555 €
24 Apr
- 03 May
MIAT Mongolian Airlines
577 €
12 Apr
- 23 Apr
China Southern
614 €
12 Apr
- 21 Apr
Aegean Airlines
619 €
30 Apr
- 11 May
Thai Airways
624 €
16 Apr
- 22 Apr
China Southern
630 €
04 Apr
- 18 Apr
China Southern
632 €
15 Apr
- 25 Apr
AZAL
632 €
09 Apr
- 18 Apr
China Southern
633 €
25 Apr
- 05 May
Thai Airways
669 €
25 Apr
- 03 May
Air Astana
714 €
18 Apr
- 03 May
Air Astana
715 €
28 Apr
- 11 May
Etihad Airways
743 €
27 Apr
- 11 May
Etihad Airways
750 €
25 Apr
- 15 May
LOT
751 €
21 Apr
- 03 May
Air Astana
753 €
Also check the deals for one-way flights from Istanbul to Seoul in April .
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.