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

Return flights

29 Aug - 11 Sep	Iberia
28 Aug - 04 Sep	Iberia
20 Aug - 25 Aug	Air Transat
21 Aug - 29 Aug	Air Transat	direct
11 Aug - 26 Aug	Air Transat	direct
19 Aug - 26 Aug	Air Transat
26 Aug - 12 Sep	British Airways
07 Aug - 15 Aug	Air Transat	direct
07 Aug - 14 Aug	Air Transat
07 Aug - 21 Aug	Air Transat
17 Aug - 24 Aug	Air Transat	direct
16 Aug - 26 Aug	Air Transat	direct
17 Aug - 25 Aug	Air Transat
26 Aug - 12 Sep	Air Canada	direct
28 Aug - 04 Sep	TAP	direct
29 Aug - 11 Sep	Air Canada	direct

Also check the deals for one-way flights from Lisbon 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 Lisbon to Toronto in August from 411€

Return flights