AirHint found the following cheapest return flights from Porto (OPO) to Hanoi (HAN) in August 2026 (see full year).
Return flights
| 24 Aug - 13 Sep | Iberia | ||
| 16 Aug - 27 Aug | Aegean Airlines | ||
| 17 Aug - 28 Aug | Aegean Airlines | ||
| 15 Aug - 22 Aug | Lufthansa | ||
| 16 Aug - 29 Aug | Lufthansa |
Also check the deals for one-way flights from Porto to Hanoi in August.
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