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

Return flights

10 May - 24 May	Hainan Airlines
14 May - 02 Jun	Hainan Airlines
19 May - 11 Jun	Lufthansa
08 May - 15 May	Austrian Airlines
10 May - 16 May	Austrian Airlines
29 May - 13 Jun	SWISS
07 May - 19 May	Lufthansa
26 May - 19 Jun	Austrian Airlines
27 May - 24 Jun	Austrian Airlines
15 May - 02 Jun	Austrian Airlines
17 May - 24 May	Austrian Airlines
30 May - 19 Jun	Austrian Airlines
26 May - 19 Jun	Thai Airways	direct
14 May - 02 Jun	Thai Airways	direct
15 May - 02 Jun	Thai Airways	direct
14 May - 14 May	Finnair

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 $576

Return flights