AirHint found the following cheapest return flights from Brussels (BRU) to Bangkok (BKK) in May 2026 (see full year).

Return flights

18 May - 29 May	Austrian Airlines
17 May - 29 May	Austrian Airlines
04 May - 25 May	Austrian Airlines
13 May - 25 May	Lufthansa
16 May - 29 May	Lufthansa
13 May - 27 May	Lufthansa
14 May - 29 May	Lufthansa
13 May - 03 Jun	Lufthansa
21 May - 12 Jun	Austrian Airlines
10 May - 14 Jun	Lufthansa
22 May - 25 May	SWISS
14 May - 27 May	SWISS
27 May - 10 Jun	Lufthansa
05 May - 18 May	Finnair
23 May - 07 Jun	SWISS
18 May - 13 Jun	Turkish Airlines
14 May - 06 Jun	Finnair
18 May - 14 Jun	Cathay Pacific
14 May - 04 Jun	Thai Airways	direct
14 May - 06 Jun	Thai Airways	direct

Also check the deals for one-way flights from Brussels to Bangkok in May.

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 May from 517€

Return flights