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

Return flights

01 Dec - 08 Dec	AJet
04 Dec - 11 Dec	Etihad Airways
10 Dec - 17 Dec	Hainan Airlines
01 Dec - 30 Jan	AJet
09 Dec - 16 Dec	Pegasus Airlines
06 Dec - 13 Dec	Pegasus Airlines
06 Dec - 20 Dec	Pegasus Airlines
11 Dec - 22 Dec	Turkish Airlines
01 Dec - 15 Dec	AJet
07 Dec - 18 Dec	Turkish Airlines
01 Dec - 10 Dec	AJet
12 Dec - 12 Jan	Pegasus Airlines
10 Dec - 19 Jan	Ryanair
01 Dec - 12 Jan	Ryanair
12 Dec - 11 Jan	Pegasus Airlines
06 Dec - 14 Jan	Pegasus Airlines
10 Dec - 24 Jan	AJet
06 Dec - 12 Jan	Turkish Airlines
15 Dec - 11 Jan	Pegasus Airlines
01 Dec - 14 Jan	AJet

Also check the deals for one-way flights from Brussels to Bangkok 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 Bangkok in December from $637

Return flights