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

Return flights

01 Oct - 08 Oct	TAP
23 Oct - 30 Oct	Azores Airlines
15 Oct - 22 Oct	WestJet
03 Oct - 10 Oct	WestJet
05 Oct - 12 Oct	Air Transat
16 Oct - 23 Oct	Air Canada
30 Oct - 06 Nov	TAP
14 Oct - 21 Oct	TAP
04 Oct - 11 Oct	Air Transat
07 Oct - 14 Oct	TAP
29 Oct - 08 Nov	TAP
24 Oct - 31 Oct	Air Canada
25 Oct - 01 Nov	Air Transat	direct
27 Oct - 03 Nov	TAP
28 Oct - 04 Nov	Air Canada
29 Oct - 05 Nov	Air Canada
29 Oct - 08 Nov	Air Transat	direct
26 Oct - 02 Nov	KLM

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

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 October from 480€

Return flights