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

Return flights

17 Oct - 21 Oct	WestJet
17 Oct - 22 Oct	WestJet
02 Oct - 07 Oct	WestJet
01 Oct - 08 Oct	WestJet
08 Oct - 22 Oct	WestJet
07 Oct - 28 Oct	WestJet
08 Oct - 28 Oct	WestJet
15 Oct - 22 Oct	Icelandair
21 Oct - 28 Oct	WestJet
03 Oct - 12 Oct	Porter Airlines (Canada) Ltd
31 Oct - 08 Nov	Flair Airlines
22 Oct - 12 Nov	Air France
14 Oct - 06 Nov	KLM
07 Oct - 03 Nov	Air France
21 Oct - 01 Nov	WestJet
23 Oct - 01 Nov	TAP

Also check the deals for one-way flights from Toronto to Barcelona in October.

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 Barcelona in October from $506

Return flights