Cheapest return flights from London to Brussels in December from 104€

Best time to book flights for London (LHR) to Brussels (BRU) flights at AirHint

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

Return flights

17 Dec - 05 Jan British Airways direct
11 Dec - 14 Dec British Airways direct
15 Dec - 17 Dec British Airways direct
08 Dec - 11 Dec British Airways direct
26 Dec - 29 Dec British Airways direct
17 Dec - 25 Dec British Airways direct
05 Dec - 08 Dec British Airways direct
19 Dec - 22 Dec British Airways direct
16 Dec - 15 Jan British Airways direct
13 Dec - 17 Dec British Airways direct
24 Dec - 28 Dec Brussels Airlines direct
20 Dec - 03 Jan Brussels Airlines direct

Also check the deals for one-way 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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