Cheapest return flights from Seoul to Istanbul in April from $610

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

Return flights

02 Apr - 09 Apr Etihad Airways
30 Apr - 10 May Etihad Airways
09 Apr - 16 Apr Etihad Airways
10 Apr - 13 Apr China Southern
22 Apr - 25 Apr China Southern
10 Apr - 16 Apr China Southern
12 Apr - 20 Apr China Southern
12 Apr - 21 Apr China Southern
01 Apr - 08 Apr China Southern
08 Apr - 19 Apr Etihad Airways
22 Apr - 24 Apr Qatar Airways
29 Apr - 08 May MIAT Mongolian Airlines
23 Apr - 04 May Singapore Airlines
29 Apr - 06 May MIAT Mongolian Airlines
22 Apr - 03 May Etihad Airways
30 Apr - 08 May Singapore Airlines
25 Apr - 04 May Singapore Airlines
23 Apr - 05 May Etihad Airways
28 Apr - 06 May Singapore Airlines
22 Apr - 06 May Qatar Airways

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

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 Istanbul

Cheap car rent in Istanbul

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