AirHint found the following cheapest one-way flights from Istanbul (IST) to Seoul (ICN) in April 2026 (see full year).
One-Way flights
| 19 Apr | MIAT Mongolian Airlines | ||
| 11 Apr | Pegasus Airlines | ||
| 01 Apr | AirAsia X | ||
| 12 Apr | AirAsia X | ||
| 03 Apr | Oman Air | ||
| 08 Apr | AirAsia X | ||
| 20 Apr | AirAsia X | ||
| 24 Apr | AirAsia X | ||
| 26 Apr | AirAsia X | ||
| 06 Apr | AirAsia X |
Also check the deals for return flights from Istanbul to Seoul in April.
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