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

Return flights

25 Dec - 31 Dec	Air Transat	direct
27 Dec - 31 Dec	Air Transat	direct
04 Dec - 08 Dec	Lufthansa
25 Dec - 02 Jan	Air Transat	direct
21 Dec - 30 Dec	Lufthansa
08 Dec - 12 Dec	British Airways
24 Dec - 01 Jan	TAP
06 Dec - 12 Dec	British Airways
23 Dec - 02 Jan	Azores Airlines
25 Dec - 30 Dec	Lufthansa
26 Dec - 01 Jan	Azores Airlines
02 Dec - 05 Dec	Ryanair
07 Dec - 14 Dec	Azores Airlines
26 Dec - 02 Jan	Ryanair
18 Dec - 02 Jan	Ryanair
27 Dec - 01 Jan	Lufthansa
12 Dec - 15 Dec	Azores Airlines
30 Dec - 06 Jan	British Airways
24 Dec - 03 Jan	TAP
21 Dec - 02 Jan	TAP

Also check the deals for one-way flights from Porto to Toronto 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 Porto to Toronto in December from $404

Return flights