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

Return flights

18 Oct - 19 Oct	British Airways
05 Oct - 31 Oct	Icelandair
19 Oct - 25 Oct	Icelandair
24 Oct - 31 Oct	Icelandair
31 Oct - 11 Nov	Icelandair
18 Oct - 25 Oct	Icelandair
04 Oct - 15 Oct	Icelandair
04 Oct - 25 Oct	Icelandair
04 Oct - 10 Oct	Icelandair
05 Oct - 12 Oct	Air Transat
11 Oct - 19 Oct	Aer Lingus
28 Oct - 04 Nov	Air Canada
29 Oct - 05 Nov	Air Canada
27 Oct - 03 Nov	British Airways
30 Oct - 06 Nov	British Airways
19 Oct - 01 Nov	British Airways
23 Oct - 07 Nov	British Airways
23 Oct - 01 Nov	British Airways
01 Oct - 08 Nov	Iberia
31 Oct - 07 Nov	Icelandair

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Toronto to Barcelona in October from $463

Return flights