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

Return flights

10 Sep - 16 Sep	WestJet
07 Sep - 16 Sep	WestJet
20 Sep - 26 Sep	Air Transat
08 Sep - 15 Sep	Air Transat
08 Sep - 12 Sep	Air Transat
09 Sep - 12 Sep	Air Transat
12 Sep - 15 Sep	Air Transat
22 Sep - 06 Oct	Air Transat
11 Sep - 14 Sep	Air Transat
10 Sep - 14 Sep	Air Transat
07 Sep - 10 Sep	Air Transat
29 Sep - 03 Oct	WestJet
24 Sep - 24 Oct	Air Transat
30 Sep - 07 Oct	Air Transat
17 Sep - 02 Oct	WestJet
26 Sep - 08 Oct	Icelandair
28 Sep - 02 Oct	WestJet
14 Sep - 04 Oct	Virgin Atlantic
29 Sep - 13 Oct	Delta
24 Sep - 04 Oct	Delta

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 $451

Return flights