Cheapest one-way flights from London to Brussels in September from $72

AirHint found the following cheapest one-way flights from London (LHR) to Brussels (BRU) in September 2025 (see full year).

One-Way flights

26 Sep British Airways direct
29 Sep British Airways direct
13 Sep British Airways direct
20 Sep British Airways direct
27 Sep British Airways direct
21 Sep British Airways direct
14 Sep British Airways direct
06 Sep British Airways direct
07 Sep British Airways direct
25 Sep British Airways direct

Also check the deals for return flights from London to Brussels in September.

Skyscanner

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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