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

Return flights

31 Aug - 11 Sep	Iberia
07 Aug - 16 Aug	Air Transat
04 Aug - 20 Aug	Air Transat
01 Aug - 10 Aug	Iberia
15 Aug - 29 Aug	Iberia
04 Aug - 14 Aug	Air Transat
14 Aug - 30 Aug	Iberia
21 Aug - 28 Aug	Iberia
14 Aug - 21 Aug	Air Transat
01 Aug - 22 Aug	Air Transat
13 Aug - 27 Aug	Iberia

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 409€

Return flights