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

Return flights

09 Dec - 17 Dec	Air China
06 Dec - 14 Dec	Air China
06 Dec - 21 Dec	Air China
06 Dec - 24 Dec	Air China
01 Dec - 15 Dec	Air China
06 Dec - 17 Dec	Air China
06 Dec - 07 Dec	Air China
04 Dec - 14 Dec	Air China
01 Dec - 10 Dec	Air China
30 Dec - 19 Jan	Air China
30 Dec - 21 Jan	Air China
08 Dec - 16 Dec	Shenzhen Airlines
30 Dec - 18 Jan	Air China
30 Dec - 20 Jan	Air China
07 Dec - 14 Jan	Air China
29 Dec - 12 Jan	Air China
06 Dec - 15 Jan	Air China
06 Dec - 20 Jan	Air China
05 Dec - 08 Jan	Shenzhen Airlines
05 Dec - 11 Jan	Shenzhen Airlines

Also check the deals for one-way flights from Barcelona to Hanoi in December.

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 December from 538€

Return flights