Cheapest one-way flights from London to Brussels in December from $147

AirHint found the following cheapest one-way flights from London (LCY) to Brussels (BRU) in December 2025 (see full year).

One-Way flights

06 Dec KLM
23 Dec KLM
11 Dec KLM
24 Dec KLM
04 Dec KLM
18 Dec KLM
30 Dec KLM
28 Dec KLM
27 Dec SWISS
14 Dec ITA Airways

Also check the deals for return flights from London to Brussels in December.

Skyscanner

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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