AirHint found the following cheapest return flights from Porto (OPO) to Hanoi (HAN) in August 2026 (see full year).

Return flights

24 Aug - 05 Sep	IndiGo
17 Aug - 28 Aug	IndiGo
16 Aug - 27 Aug	IndiGo
17 Aug - 24 Aug	SWISS
17 Aug - 29 Aug	IndiGo
17 Aug - 27 Aug	IndiGo
08 Aug - 21 Aug	Lufthansa
20 Aug - 31 Aug	Iberia
09 Aug - 16 Aug	SWISS

Also check the deals for one-way flights from Porto to Hanoi in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Porto to Hanoi in August from 814€

Return flights