AirHint found the following cheapest return flights from Helsinki (HEL) to Hanoi (HAN) in September 2026 (see full year).
Return flights
| 15 Sep - 12 Oct | Pegasus Airlines | ||
| 20 Sep - 23 Oct | Finnair | ||
| 14 Sep - 21 Sep | Turkish Airlines | ||
| 17 Sep - 20 Sep | Finnair |
Also check the deals for one-way flights from Helsinki to Hanoi in September.
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