Cheapest one-way flights from Seoul to Istanbul in April from $283

AirHint found the following cheapest one-way flights from Seoul (GMP) to Istanbul (IST) in April 2026 (see full year).

One-Way flights

04 Apr Air China
01 Apr China Southern
06 Apr Asiana Airlines
11 Apr Korean Air
15 Apr China Southern
13 Apr China Southern
05 Apr China Southern
03 Apr China Southern
20 Apr China Southern
09 Apr Korean Air

Also check the deals for return flights from Seoul to Istanbul in April.

Powered by

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.