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

Return flights

05 Dec - 14 Dec	Icelandair
14 Dec - 22 Dec	British Airways
01 Dec - 14 Dec	British Airways
13 Dec - 27 Dec	British Airways
04 Dec - 27 Dec	British Airways
25 Dec - 22 Jan	British Airways
14 Dec - 10 Jan	TAP
24 Dec - 30 Dec	British Airways
30 Dec - 06 Jan	British Airways
30 Dec - 09 Jan	British Airways
12 Dec - 04 Jan	Icelandair
17 Dec - 07 Jan	British Airways
24 Dec - 05 Jan	British Airways
09 Dec - 03 Jan	Azores Airlines
25 Dec - 03 Jan	Air Transat
20 Dec - 25 Dec	Air France
28 Dec - 03 Jan	Delta
21 Dec - 30 Dec	Delta

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

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 December from 447€

Return flights