AirHint found the following cheapest return flights from London (LHR) to Brussels (BRU)
in September 2025 (see full year ).
Return flights
15 Sep
- 02 Oct
British Airways
107 €
direct
07 Sep
- 14 Sep
British Airways
108 €
direct
14 Sep
- 21 Sep
British Airways
110 €
direct
03 Sep
- 07 Sep
British Airways
111 €
direct
18 Sep
- 22 Sep
British Airways
112 €
direct
17 Sep
- 22 Sep
British Airways
112 €
direct
11 Sep
- 14 Sep
British Airways
112 €
direct
14 Sep
- 17 Sep
British Airways
112 €
direct
13 Sep
- 14 Sep
British Airways
113 €
direct
06 Sep
- 07 Sep
British Airways
114 €
direct
11 Sep
- 12 Sep
British Airways
114 €
direct
Also check the deals for one-way flights from London to Brussels in September .
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.