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

Return flights

04 Dec - 08 Dec	Air Canada
05 Dec - 08 Dec	Lufthansa
06 Dec - 09 Dec	Lufthansa
02 Dec - 09 Dec	Air Canada
14 Dec - 11 Jan	Lufthansa
16 Dec - 31 Dec	Lufthansa
25 Dec - 31 Dec	Lufthansa
18 Dec - 31 Dec	Lufthansa
17 Dec - 31 Dec	Air Canada	direct
19 Dec - 31 Dec	Lufthansa	direct
26 Dec - 11 Jan	Air Canada	direct
26 Dec - 12 Jan	Air Canada	direct
26 Dec - 09 Jan	Air Canada	direct
16 Dec - 08 Jan	Lufthansa
23 Dec - 13 Jan	Air Canada
14 Dec - 11 Jan	Lufthansa	direct
04 Dec - 10 Dec	British Airways
26 Dec - 01 Jan	Air Transat	direct
25 Dec - 01 Jan	United
23 Dec - 07 Jan	Lufthansa

Also check the deals for one-way flights from Lisbon 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 Lisbon to Toronto in December from $415

Return flights