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

Return flights

19 May - 11 Jun	SWISS
27 May - 06 Jun	SWISS
28 May - 06 Jun	SWISS
11 May - 25 May	SWISS
29 May - 13 Jun	SWISS
30 May - 03 Jun	Lufthansa
15 May - 12 Jun	SWISS
27 May - 24 Jun	SWISS
07 May - 29 May	SWISS
07 May - 19 May	SWISS
08 May - 24 May	SWISS
04 May - 08 May	SWISS
29 May - 09 Jun	Thai Lion Air
01 May - 29 May	Thai AirAsia
01 May - 09 May	Austrian Airlines
01 May - 24 May	Austrian Airlines
01 May - 28 Jun	Emirates
07 May - 19 May	Thai Airways	direct
27 May - 06 Jun	Thai Airways	direct
07 May - 29 May	Thai Airways	direct

Also check the deals for one-way flights from Bangkok to Brussels 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 Bangkok to Brussels in May from $638

Return flights