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

Return flights

10 Dec - 17 Dec	TAP
02 Dec - 06 Dec	Air Canada
01 Dec - 14 Dec	TAP
04 Dec - 07 Dec	TAP
23 Dec - 30 Dec	Azores Airlines
17 Dec - 28 Dec	TAP
24 Dec - 31 Dec	TAP
24 Dec - 01 Jan	Air Transat	direct
27 Dec - 03 Jan	TAP

Also check the deals for one-way flights from Toronto to Porto 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Toronto to Porto in December from 518€

Return flights