AirHint found the following cheapest one-way flights from Nis (INI) to Istanbul (IST) in October 2025 (see full year).
One-Way flights
| 28 Oct | Air Serbia | direct | |
| 25 Oct | Air Serbia | direct | |
| 30 Oct | Ryanair | ||
| 29 Oct | Ryanair | ||
| 26 Oct | Ryanair | ||
| 24 Oct | Ryanair |
Also check the deals for return flights from Nis to Istanbul in October.
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