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

Return flights

12 Aug - 12 Sep	Royal Air Maroc
24 Aug - 31 Aug	WestJet
20 Aug - 27 Aug	WestJet
23 Aug - 08 Sep	Royal Air Maroc
27 Aug - 01 Sep	Air Transat
22 Aug - 03 Sep	Air Transat
10 Aug - 06 Sep	Air Transat
23 Aug - 02 Sep	Air Transat
29 Aug - 06 Sep	Air Transat
20 Aug - 03 Sep	Air Transat
31 Aug - 15 Sep	Air Transat
21 Aug - 07 Sep	Air Transat
14 Aug - 28 Aug	Air Transat
15 Aug - 30 Aug	WestJet
15 Aug - 29 Aug	WestJet
08 Aug - 30 Aug	WestJet
13 Aug - 28 Aug	Air Transat
22 Aug - 29 Aug	WestJet
21 Aug - 28 Aug	Air Transat
08 Aug - 30 Aug	Air Transat	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 $567

Return flights