Cheapest return flights from London to Brussels in September from 239€

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

Return flights

04 Sep - 08 Sep SWISS
12 Sep - 14 Sep SWISS
14 Sep - 21 Sep SWISS
24 Sep - 28 Sep KLM
14 Sep - 19 Sep KLM
10 Sep - 13 Sep KLM
04 Sep - 13 Sep KLM
11 Sep - 14 Sep SWISS
04 Sep - 06 Sep SWISS
11 Sep - 13 Sep SWISS

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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