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

Return flights

13 Aug - 20 Aug	China Southern
07 Aug - 14 Aug	China Eastern
11 Aug - 18 Aug	Hainan Airlines
10 Aug - 17 Aug	Hainan Airlines
05 Aug - 18 Aug	Lufthansa
12 Aug - 08 Sep	Hainan Airlines
13 Aug - 08 Sep	Hainan Airlines
24 Aug - 29 Aug	Hainan Airlines
24 Aug - 31 Aug	Hainan Airlines
30 Aug - 23 Sep	Hainan Airlines
11 Aug - 15 Aug	IndiGo
09 Aug - 30 Aug	IndiGo
09 Aug - 10 Aug	IndiGo
30 Aug - 22 Sep	Hainan Airlines
10 Aug - 01 Sep	IndiGo
15 Aug - 13 Sep	China Eastern
29 Aug - 24 Sep	IndiGo
24 Aug - 02 Sep	IndiGo
20 Aug - 27 Sep	IndiGo
04 Aug - 01 Sep	Lufthansa

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 638€

Return flights