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

Return flights

30 Sep - 10 Oct	Air Canada
29 Sep - 09 Oct	Air Canada
23 Sep - 29 Sep	Air Transat
23 Sep - 30 Sep	Porter Airlines (Canada) Ltd
22 Sep - 29 Sep	Porter Airlines (Canada) Ltd
24 Sep - 29 Sep	Air Transat
28 Sep - 08 Oct	Air Canada
25 Sep - 28 Sep	Air Transat
24 Sep - 30 Sep	Porter Airlines (Canada) Ltd
18 Sep - 11 Oct	Air Transat
23 Sep - 28 Sep	Porter Airlines (Canada) Ltd
22 Sep - 27 Sep	Air Transat
19 Sep - 11 Oct	Air Transat
26 Sep - 18 Oct	Air Canada
22 Sep - 28 Sep	Air Transat
19 Sep - 26 Sep	Air Transat

Also check the deals for one-way flights from Toronto 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 Toronto to Brussels in September from 468€

Return flights