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

Return flights

24 Oct - 01 Nov	Iberia
28 Oct - 22 Nov	Air Canada
27 Oct - 05 Nov	Air Canada
29 Oct - 04 Nov	Air Canada
21 Oct - 15 Nov	Delta
24 Oct - 31 Oct	Delta
23 Oct - 31 Oct	Delta
28 Oct - 07 Nov	Delta
31 Oct - 22 Nov	British Airways
29 Oct - 22 Nov	British Airways
30 Oct - 22 Nov	British Airways
31 Oct - 30 Nov	Air Transat
21 Oct - 29 Oct	WestJet
20 Oct - 30 Oct	WestJet
21 Oct - 26 Oct	WestJet
20 Oct - 23 Oct	Iberia
21 Oct - 24 Oct	Air Transat
20 Oct - 27 Oct	WestJet
21 Oct - 30 Oct	WestJet
24 Oct - 29 Oct	British Airways

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 436€

Return flights