AirHint found the following cheapest one-way flights from Istanbul (IST) to Tehran (IKA) in October 2026 (see full year).
One-Way flights
| 07 Oct | Pegasus Airlines | direct | |
| 11 Oct | Pegasus Airlines | direct | |
| 18 Oct | Pegasus Airlines | direct | |
| 31 Oct | Turkish Airlines | direct |
Also check the deals for return flights from Istanbul to Tehran in October.
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