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

Return flights

25 Sep - 09 Oct	Scandinavian Airlines
08 Sep - 19 Sep	Vueling Airlines
12 Sep - 15 Sep	Air Canada
01 Sep - 15 Sep	Air Canada
01 Sep - 14 Sep	Air Canada
08 Sep - 23 Sep	Vueling Airlines
08 Sep - 22 Sep	Vueling Airlines
04 Sep - 07 Sep	Air Canada
24 Sep - 04 Oct	Icelandair
09 Sep - 14 Sep	Air Transat
06 Sep - 13 Sep	Air Transat
18 Sep - 23 Sep	Air Transat
26 Sep - 10 Oct	Air Canada
20 Sep - 04 Oct	Air Transat
26 Sep - 03 Oct	Air Canada
07 Sep - 16 Oct	Air Canada
30 Sep - 25 Oct	Air Canada
29 Sep - 24 Oct	Air Canada

Also check the deals for one-way flights from Barcelona 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 Barcelona to Toronto in September from $414

Return flights