AirHint found the following cheapest return flights from Porto (OPO) to Hanoi (HAN) in August 2026 (see full year).
Return flights
| 16 Aug - 31 Aug | Ryanair | ||
| 17 Aug - 01 Sep | Air Europa | ||
| 17 Aug - 31 Aug | TAP | ||
| 08 Aug - 22 Aug | SWISS | ||
| 01 Aug - 15 Aug | easyJet |
Also check the deals for one-way flights from Porto to Hanoi in August.
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