AirHint found the following cheapest return flights from London (LCY) to Brussels (BRU) in January 2026 (see full year).

Return flights

22 Jan - 27 Jan	SWISS
22 Jan - 29 Jan	KLM
23 Jan - 30 Jan	KLM
05 Jan - 09 Jan	KLM
12 Jan - 16 Jan	KLM
19 Jan - 23 Jan	KLM
23 Jan - 25 Jan	KLM
09 Jan - 11 Jan	KLM
21 Jan - 28 Jan	KLM
07 Jan - 12 Jan	KLM
30 Jan - 01 Feb	KLM
30 Jan - 02 Feb	SWISS

Also check the deals for one-way flights from London to Brussels in January.

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 January from $258

Return flights