AirHint found the following cheapest return flights from Porto (OPO) to Toronto (YYZ) in September 2026 (see full year).
Return flights
| 12 Sep - 18 Sep | Lufthansa | ||
| 21 Sep - 30 Sep | Lufthansa | ||
| 21 Sep - 30 Sep | Air Transat | direct | |
| 04 Sep - 04 Sep | Air Transat | ||
| 05 Sep - 05 Sep | Air Transat |
Also check the deals for one-way flights from Porto to Toronto in September.
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