AirHint found the following cheapest return flights from Toronto (YYZ) to Porto (OPO) in September 2026 (see full year).
Return flights
| 02 Sep - 16 Sep | Air Transat | ||
| 28 Sep - 05 Oct | Air Transat | ||
| 03 Sep - 17 Sep | TAP | ||
| 04 Sep - 13 Sep | TAP | ||
| 03 Sep - 12 Sep | TAP |
Also check the deals for one-way flights from Toronto to Porto in September.
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