AirHint found the following cheapest return flights from Barcelona (BCN) to Hanoi (HAN) in August 2025 (see full year).

Return flights

29 Aug - 08 Sep	Air China
27 Aug - 09 Sep	Air China
24 Aug - 07 Sep	Air China
24 Aug - 09 Sep	Air China
26 Aug - 08 Sep	Air China
31 Aug - 14 Sep	Vueling Airlines
30 Aug - 14 Sep	Ryanair
30 Aug - 15 Sep	Air China
29 Aug - 14 Sep	Vueling Airlines
24 Aug - 10 Sep	Air China
03 Aug - 15 Aug	Air China
21 Aug - 28 Aug	Ryanair
02 Aug - 10 Aug	Ryanair
23 Aug - 31 Aug	Wizz Air Malta
19 Aug - 30 Aug	ITA Airways
20 Aug - 30 Aug	ITA Airways
12 Aug - 17 Aug	Air China
10 Aug - 17 Aug	Air China
07 Aug - 14 Aug	Air China
21 Aug - 30 Aug	ITA Airways

Also check the deals for one-way flights from Barcelona 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 Barcelona to Hanoi in August from $715

Return flights