Cheapest return flights from Toronto to Porto in September from 523€

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

Return flights

22 Sep - 31 Oct Air Canada
22 Sep - 10 Oct Air Canada
03 Sep - 17 Sep KLM
21 Sep - 30 Oct SWISS
09 Sep - 12 Sep WestJet
22 Sep - 11 Oct Air Transat direct
25 Sep - 30 Sep Air Transat
05 Sep - 15 Sep Air Transat
16 Sep - 22 Sep WestJet
15 Sep - 21 Sep Air Transat
05 Sep - 14 Sep Air Transat
08 Sep - 22 Sep Air Transat
21 Sep - 05 Oct Air Transat
04 Sep - 22 Sep Air Transat direct
08 Sep - 14 Sep Air Transat

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

Skyscanner

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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