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

Return flights

12 Aug - 26 Aug	Porter Airlines (Canada) Ltd
25 Aug - 01 Sep	Air Transat
05 Aug - 12 Aug	Air Transat
19 Aug - 26 Aug	Air Transat
24 Aug - 31 Aug	Air Transat
01 Aug - 12 Aug	Air Transat
17 Aug - 24 Aug	Air Transat
23 Aug - 12 Sep	Air Transat
29 Aug - 05 Sep	Air Transat
11 Aug - 18 Aug	Air Transat
15 Aug - 22 Aug	Air Transat
14 Aug - 29 Aug	Porter Airlines (Canada) Ltd
01 Aug - 08 Aug	Air Transat
27 Aug - 03 Sep	Air Transat
31 Aug - 07 Sep	Air Canada
12 Aug - 04 Sep	Air Canada
13 Aug - 04 Sep	Air Canada

Also check the deals for one-way flights from Toronto to Lisbon 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 Toronto to Lisbon in August from 540€

Return flights