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

Return flights

05 Aug - 01 Sep	SWISS
31 Aug - 12 Sep	Hainan Airlines
01 Aug - 18 Aug	Etihad Airways
02 Aug - 15 Aug	Etihad Airways
04 Aug - 03 Sep	IndiGo
03 Aug - 03 Sep	IndiGo
03 Aug - 02 Sep	IndiGo
27 Aug - 17 Sep	Hainan Airlines
27 Aug - 18 Sep	Hainan Airlines
16 Aug - 30 Aug	Etihad Airways
02 Aug - 17 Aug	IndiGo
05 Aug - 18 Aug	IndiGo
03 Aug - 18 Aug	Etihad Airways
03 Aug - 18 Sep	Etihad Airways
09 Aug - 16 Aug	Etihad Airways
18 Aug - 04 Sep	Qatar Airways
09 Aug - 30 Aug	IndiGo
10 Aug - 26 Aug	IndiGo
01 Aug - 10 Aug	IndiGo
22 Aug - 05 Sep	Hainan Airlines

Also check the deals for one-way flights from Bangkok to Brussels 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 Bangkok to Brussels in August from 575€

Return flights