Cheapest return flights from London to Brussels in September from $259

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

Return flights

10 Sep - 17 Sep Lufthansa
24 Sep - 01 Oct Lufthansa
15 Sep - 22 Sep Lufthansa
18 Sep - 22 Sep Lufthansa
10 Sep - 15 Sep Lufthansa
02 Sep - 03 Sep Lufthansa
17 Sep - 18 Sep Lufthansa
15 Sep - 19 Sep Lufthansa
23 Sep - 26 Sep Lufthansa
08 Sep - 11 Sep Lufthansa
25 Sep - 27 Sep KLM

Also check the deals for one-way 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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