AirHint found the following cheapest return flights from Porto (OPO) to Toronto (YYZ) in August 2026 (see full year).

Return flights

26 Aug - 04 Sep	Iberia
26 Aug - 05 Sep	Iberia
26 Aug - 06 Sep	Iberia
26 Aug - 15 Sep	Iberia
27 Aug - 05 Sep	Iberia
28 Aug - 06 Sep	Iberia
27 Aug - 06 Sep	Iberia
27 Aug - 07 Sep	Iberia
25 Aug - 06 Sep	Iberia
27 Aug - 04 Sep	Iberia
24 Aug - 31 Aug	Iberia
14 Aug - 28 Aug	Iberia
15 Aug - 29 Aug	Iberia
09 Aug - 29 Aug	Iberia
10 Aug - 30 Aug	Iberia
01 Aug - 12 Aug	Iberia
21 Aug - 28 Aug	Iberia
07 Aug - 14 Aug	Air Transat
18 Aug - 25 Aug	Air Transat
11 Aug - 18 Aug	Air Transat

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

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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Cheapest return flights from Porto to Toronto in August from $458

Return flights