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

Return flights

15 Oct - 13 Nov	Cathay Pacific
04 Oct - 10 Oct	Thai Lion Air
24 Oct - 31 Oct	Scoot
01 Oct - 28 Nov	Finnair
04 Oct - 26 Oct	Thai Lion Air
02 Oct - 30 Oct	Finnair
03 Oct - 13 Oct	Etihad Airways
16 Oct - 28 Oct	IndiGo
02 Oct - 04 Oct	IndiGo
13 Oct - 16 Nov	Emirates
19 Oct - 30 Oct	IndiGo
09 Oct - 26 Oct	IndiGo
10 Oct - 25 Oct	IndiGo
15 Oct - 13 Nov	Thai Airways	direct
01 Oct - 28 Nov	Thai Airways	direct

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

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 October from $663

Return flights