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

Return flights

03 Aug - 10 Aug	Air Transat
28 Aug - 05 Sep	Scandinavian Airlines
17 Aug - 24 Aug	Air Transat	direct
31 Aug - 13 Sep	Air Transat
27 Aug - 01 Sep	Air Transat
29 Aug - 11 Sep	Air Transat
02 Aug - 14 Aug	Air Canada	direct
13 Aug - 24 Aug	Air Transat
01 Aug - 20 Aug	Air Transat
08 Aug - 29 Aug	Air Transat
22 Aug - 29 Aug	Air Transat
20 Aug - 30 Aug	Air Transat
07 Aug - 29 Aug	Air Transat
13 Aug - 24 Aug	TAP	direct
31 Aug - 13 Sep	TAP	direct
28 Aug - 05 Sep	Air Canada	direct
27 Aug - 01 Sep	TAP	direct
07 Aug - 07 Sep	Air Transat
07 Aug - 07 Sep	TAP	direct

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 551€

Return flights