AirHint found the following cheapest return flights from Istanbul (IST) to Seoul (ICN)
in April 2025 (see full year ).
Return flights
01 Apr
- 15 May
China Southern
$ 500
01 Apr
- 07 Apr
MIAT Mongolian Airlines
$ 649
06 Apr
- 13 Apr
MIAT Mongolian Airlines
$ 718
01 Apr
- 06 Apr
MIAT Mongolian Airlines
$ 754
23 Apr
- 30 Apr
Uzbekistan Airways
$ 761
14 Apr
- 17 Apr
Etihad Airways
$ 761
08 Apr
- 15 Apr
Etihad Airways
$ 762
07 Apr
- 17 Apr
Etihad Airways
$ 763
28 Apr
- 17 May
Etihad Airways
$ 763
29 Apr
- 08 May
Etihad Airways
$ 766
19 Apr
- 22 May
Etihad Airways
$ 768
11 Apr
- 07 May
Etihad Airways
$ 768
26 Apr
- 05 May
Air Astana
$ 774
01 Apr
- 05 Apr
Etihad Airways
$ 776
22 Apr
- 30 Apr
Air Astana
$ 779
19 Apr
- 24 Apr
Air Astana
$ 779
25 Apr
- 01 May
Air Astana
$ 779
12 Apr
- 08 May
Air Astana
$ 781
20 Apr
- 04 May
Air Astana
$ 785
19 Apr
- 03 May
Air Astana
$ 785
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.