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

Return flights

05 Dec - 13 Dec	Hainan Airlines
13 Dec - 28 Dec	Cathay Pacific
12 Dec - 19 Dec	Thai Airways
28 Dec - 11 Jan	Ethiopian Airlines
27 Dec - 11 Jan	Cathay Pacific
14 Dec - 27 Dec	Thai Airways
14 Dec - 28 Dec	Thai Airways
13 Dec - 27 Dec	Turkish Airlines
12 Dec - 16 Jan	Turkish Airlines
29 Dec - 10 Jan	Turkish Airlines
25 Dec - 17 Jan	Qatar Airways
21 Dec - 28 Dec	Brussels Airlines
25 Dec - 08 Jan	Qatar Airways
24 Dec - 08 Jan	Qatar Airways
24 Dec - 01 Jan	Qatar Airways
20 Dec - 28 Dec	Turkish Airlines
23 Dec - 01 Jan	Thai Airways
24 Dec - 06 Jan	Qatar Airways

Also check the deals for one-way flights from Brussels 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 Brussels to Hanoi in December from 668€

Return flights