AirHint found the following cheapest one-way flights from Cheju (CJU) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 15 May | Asiana Airlines | ||
| 27 May | Asiana Airlines | ||
| 28 May | Asiana Airlines | ||
| 29 May | Korean Air | ||
| 30 May | HK Express |
Also check the deals for return flights from Cheju to Istanbul in May.
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