Cheapest return flights from London to Brussels in December from 101€

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

19 Dec - 17 Jan British Airways direct
06 Dec - 06 Dec British Airways direct
04 Dec - 08 Dec British Airways direct
06 Dec - 07 Dec British Airways direct
01 Dec - 04 Dec British Airways direct
01 Dec - 03 Dec British Airways direct
05 Dec - 07 Dec British Airways direct
20 Dec - 23 Dec Brussels Airlines direct
14 Dec - 16 Dec Brussels Airlines direct
20 Dec - 03 Jan Brussels Airlines direct
24 Dec - 27 Dec Brussels Airlines direct
01 Dec - 31 Dec Brussels Airlines direct
21 Dec - 03 Jan Brussels Airlines direct
26 Dec - 02 Jan Brussels Airlines direct

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

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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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