Cheapest return flights from Porto to Toronto in September from $427

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

Return flights

11 Sep - 15 Sep SWISS
09 Sep - 15 Sep Lufthansa
09 Sep - 16 Sep Lufthansa
09 Sep - 19 Sep Air Transat
18 Sep - 21 Sep SWISS
08 Sep - 15 Sep Lufthansa
12 Sep - 21 Sep Lufthansa
23 Sep - 30 Sep Air Canada
05 Sep - 19 Sep Air Transat
25 Sep - 03 Oct SWISS
25 Sep - 03 Oct Air Transat direct
06 Sep - 13 Sep Air Canada
27 Sep - 01 Oct Air Canada
27 Sep - 01 Oct Air Transat direct

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

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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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