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

Return flights

16 Sep - 06 Oct	Vueling Airlines
16 Sep - 25 Sep	Vueling Airlines
18 Sep - 20 Sep	KLM
10 Sep - 15 Sep	Vueling Airlines
16 Sep - 20 Sep	Vueling Airlines
11 Sep - 15 Sep	Vueling Airlines
18 Sep - 06 Oct	Vueling Airlines
10 Sep - 25 Sep	Vueling Airlines
18 Sep - 25 Sep	Vueling Airlines
11 Sep - 25 Sep	Vueling Airlines
18 Sep - 20 Sep	Brussels Airlines	direct
10 Sep - 20 Sep	Vueling Airlines
18 Sep - 09 Oct	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 179€

Return flights