AirHint found the following cheapest one-way flights from Osaka (ITM) to Istanbul (IST) in December 2025 (see full year).
One-Way flights
| 30 Dec | Japan Airlines | ||
| 31 Dec | Japan Airlines | ||
| 24 Dec | Qatar Airways | ||
| 28 Dec | ANA | ||
| 26 Dec | Turkish Airlines |
Also check the deals for return flights from Osaka to Istanbul in December.
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