AirHint found the following cheapest return flights from Hanoi (HAN) to Istanbul (IST) in September 2026 (see full year).
Return flights
| 15 Sep - 22 Sep | IndiGo | ||
| 20 Sep - 22 Sep | IndiGo | ||
| 01 Sep - 19 Sep | IndiGo | ||
| 15 Sep - 22 Sep | Vietnam Airlines | direct | |
| 01 Sep - 19 Sep | Vietnam Airlines | direct | |
| 20 Sep - 22 Sep | Vietnam Airlines | direct |
Also check the deals for one-way flights from Hanoi to Istanbul in September.
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