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

Return flights

25 Sep - 10 Oct	Air Transat
07 Sep - 21 Sep	Brussels Airlines
02 Sep - 18 Sep	Brussels Airlines
04 Sep - 27 Sep	Brussels Airlines
30 Sep - 08 Oct	Air Canada
18 Sep - 11 Oct	Air Canada
28 Sep - 06 Oct	Air Canada
30 Sep - 07 Oct	Air Canada
29 Sep - 06 Oct	Air Canada
23 Sep - 07 Oct	Air Canada
29 Sep - 25 Oct	Air Canada
23 Sep - 30 Sep	Brussels Airlines
11 Sep - 24 Sep	Brussels Airlines
06 Sep - 27 Sep	Air Canada
01 Sep - 27 Sep	Air Canada

Also check the deals for one-way flights from Quebec 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 Quebec to Brussels in September from 405€

Return flights