AirHint found the following cheapest return flights from London (LCY) to Brussels (BRU) in December 2026 (see full year).
Return flights
| 03 Dec - 06 Dec | KLM | ||
| 25 Dec - 28 Dec | KLM | ||
| 04 Dec - 07 Dec | KLM | ||
| 18 Dec - 20 Dec | KLM | ||
| 03 Dec - 08 Dec | KLM | ||
| 11 Dec - 15 Dec | KLM | ||
| 29 Dec - 02 Jan | KLM | ||
| 20 Dec - 03 Jan | KLM | ||
| 22 Dec - 29 Dec | KLM |
Also check the deals for one-way flights from London to Brussels in December.
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