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

Return flights

26 Aug - 02 Sep	Air Transat
12 Aug - 19 Aug	Air Transat
24 Aug - 31 Aug	Air Transat
27 Aug - 03 Sep	Air Transat
25 Aug - 01 Sep	Porter Airlines (Canada) Ltd
13 Aug - 20 Aug	Air Transat
07 Aug - 24 Aug	Air Transat
12 Aug - 23 Aug	Air Transat
25 Aug - 30 Aug	SWISS
28 Aug - 04 Sep	Air Canada
01 Aug - 30 Sep	SWISS
04 Aug - 18 Aug	SWISS
09 Aug - 15 Aug	SWISS

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 547€

Return flights