Cheapest return flights from London to Brussels in September from $119
AirHint found the following cheapest return flights from London (LHR) to Brussels (BRU) in September 2025 (see full year).
Return flights
| 18 Sep - 21 Sep | British Airways | direct | |
| 11 Sep - 26 Sep | British Airways | direct | |
| 04 Sep - 08 Sep | Brussels Airlines | 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.
