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

Return flights

16 Oct - 25 Oct	Porter Airlines (Canada) Ltd
05 Oct - 13 Oct	Finnair
11 Oct - 13 Oct	Finnair
04 Oct - 15 Oct	Icelandair
14 Oct - 25 Oct	Air Transat
13 Oct - 22 Oct	Icelandair
20 Oct - 31 Oct	Icelandair
04 Oct - 10 Oct	Icelandair
18 Oct - 24 Oct	Icelandair
14 Oct - 15 Oct	Porter Airlines (Canada) Ltd
23 Oct - 06 Nov	KLM
31 Oct - 08 Nov	Delta
28 Oct - 03 Nov	Air France
24 Oct - 01 Nov	Royal Air Maroc
22 Oct - 02 Nov	Icelandair
29 Oct - 02 Nov	British Airways
25 Oct - 02 Nov	Air France
20 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 385€

Return flights