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

Return flights

20 Sep - 29 Sep	Finnair
02 Sep - 06 Oct	Iberia
18 Sep - 27 Sep	Air France
03 Sep - 06 Oct	Iberia
17 Sep - 21 Sep	Iberia
01 Sep - 08 Sep	Iberia
20 Sep - 04 Oct	Iberia
17 Sep - 21 Sep	Air Canada	direct
02 Sep - 16 Sep	Iberia
01 Sep - 08 Sep	Air Canada	direct
02 Sep - 07 Oct	Iberia
02 Sep - 06 Oct	Air Canada	direct
02 Sep - 07 Oct	Air Canada	direct
03 Sep - 06 Oct	Air Canada	direct
02 Sep - 12 Sep	Iberia
10 Sep - 20 Sep	SWISS
01 Sep - 11 Sep	Iberia
20 Sep - 04 Oct	Air Transat	direct

Also check the deals for one-way flights from Lisbon to Toronto in September.

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 September from 390€

Return flights