Cheapest return LHR–BRU flights, September

AirHint found the following cheapest return flights from London (LHR) to Brussels (BRU) in September 2026 (see full year).

Return flights

18 Sep - 21 Sep British Airways direct
18 Sep - 25 Sep British Airways direct
24 Sep - 29 Sep British Airways direct
08 Sep - 15 Sep British Airways direct
25 Sep - 28 Sep British Airways direct
24 Sep - 28 Sep British Airways direct
23 Sep - 01 Oct British Airways direct
23 Sep - 27 Sep British Airways direct
24 Sep - 27 Sep British Airways direct
20 Sep - 27 Sep British Airways direct
21 Sep - 30 Sep British Airways direct
29 Sep - 28 Oct British Airways direct
28 Sep - 02 Oct Brussels Airlines direct
12 Sep - 03 Oct Brussels Airlines direct

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

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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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