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

Return flights

19 Sep - 22 Sep	Vueling Airlines
24 Sep - 25 Sep	Vueling Airlines
03 Sep - 04 Sep	Vueling Airlines
10 Sep - 17 Sep	Transavia France
19 Sep - 21 Sep	Vueling Airlines
10 Sep - 10 Sep	Vueling Airlines
09 Sep - 16 Sep	Vueling Airlines
17 Sep - 17 Sep	Vueling Airlines
11 Sep - 14 Sep	Vueling Airlines
01 Sep - 09 Sep	Vueling Airlines

Also check the deals for one-way flights from Paris 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.

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Cheapest return flights from Paris to Brussels in September from $130

Return flights