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

Return flights

06 Sep - 20 Sep	Aer Lingus
10 Sep - 21 Sep	Aer Lingus
16 Sep - 21 Sep	Aer Lingus
02 Sep - 14 Sep	Aer Lingus
18 Sep - 28 Sep	Aer Lingus
19 Sep - 29 Sep	Aer Lingus
16 Sep - 30 Sep	Aer Lingus
16 Sep - 23 Sep	Aer Lingus
23 Sep - 08 Oct	Aer Lingus
16 Sep - 17 Oct	Aer Lingus
29 Sep - 13 Oct	Aer Lingus
15 Sep - 29 Sep	Air Transat
15 Sep - 22 Sep	Air Transat
22 Sep - 07 Oct	Aer Lingus
16 Sep - 17 Oct	Brussels Airlines	direct

Also check the deals for one-way flights from Brussels to Toronto 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 Brussels to Toronto in September from $503

Return flights