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

Return flights

11 Oct - 15 Oct	ITA Airways
03 Oct - 06 Oct	Lufthansa
07 Oct - 09 Oct	Lufthansa
01 Oct - 31 Oct	Lufthansa
21 Oct - 22 Oct	Lufthansa
15 Oct - 22 Oct	Lufthansa
02 Oct - 06 Oct	Lufthansa
01 Oct - 06 Oct	Lufthansa
08 Oct - 13 Oct	Lufthansa
10 Oct - 13 Oct	Lufthansa
23 Oct - 01 Nov	KLM
22 Oct - 02 Nov	Lufthansa
24 Oct - 01 Nov	KLM
30 Oct - 02 Nov	Lufthansa
30 Oct - 04 Nov	KLM
31 Oct - 05 Nov	Lufthansa
31 Oct - 06 Nov	Lufthansa
31 Oct - 04 Nov	Lufthansa
31 Oct - 03 Nov	Lufthansa
25 Oct - 22 Nov	KLM

Also check the deals for one-way flights from London 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 London to Brussels in October from $243

Return flights