Cheapest return flights from London to Brussels in December from 108€

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

Return flights

04 Dec - 04 Dec Brussels Airlines direct
06 Dec - 13 Dec British Airways direct
10 Dec - 10 Dec Brussels Airlines direct
04 Dec - 09 Dec Brussels Airlines direct
04 Dec - 08 Dec Brussels Airlines direct
04 Dec - 06 Dec Brussels Airlines direct
02 Dec - 05 Dec Brussels Airlines direct
10 Dec - 12 Dec Brussels Airlines direct
02 Dec - 04 Dec Brussels Airlines direct
02 Dec - 09 Dec Brussels Airlines direct
17 Dec - 19 Jan British Airways direct
26 Dec - 09 Jan Brussels Airlines direct
18 Dec - 06 Jan Brussels Airlines direct
29 Dec - 11 Jan Brussels Airlines direct
30 Dec - 10 Jan Brussels Airlines direct
30 Dec - 06 Jan Brussels Airlines direct
29 Dec - 19 Jan Brussels Airlines direct
31 Dec - 04 Jan British Airways direct
29 Dec - 05 Jan Brussels Airlines direct
18 Dec - 05 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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