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

One-Way flights

05 Dec	Azores Airlines
16 Dec	Azores Airlines
28 Dec	TAP	direct
29 Dec	TAP	direct
16 Dec	TAP	direct
17 Dec	TAP	direct
27 Dec	Air Transat
24 Dec	Porter Airlines (Canada) Ltd
27 Dec	Air Transat	direct
24 Dec	TAP	direct

Also check the deals for return flights from Toronto to Lisbon 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 one-way flights from Toronto to Lisbon in December from 222€

One-Way flights