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

Return flights

12 Sep - 19 Sep	WestJet
06 Sep - 13 Sep	WestJet
02 Sep - 10 Sep	WestJet
13 Sep - 27 Sep	WestJet
25 Sep - 04 Oct	WestJet
10 Sep - 22 Sep	WestJet
25 Sep - 02 Oct	WestJet
11 Sep - 21 Sep	Flair Airlines
24 Sep - 01 Oct	Air Canada	direct
02 Sep - 24 Sep	Air Transat	direct
02 Sep - 20 Sep	WestJet
14 Sep - 28 Sep	Air Transat	direct
27 Sep - 15 Oct	Air Transat	direct
02 Sep - 10 Sep	Air Transat	direct
18 Sep - 04 Oct	Flair Airlines
18 Sep - 03 Oct	Flair Airlines
11 Sep - 03 Oct	WestJet
04 Sep - 02 Oct	WestJet
11 Sep - 03 Oct	Air Canada	direct
04 Sep - 02 Oct	TAP	direct

Also check the deals for one-way flights from Toronto to Lisbon 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 Toronto to Lisbon in September from 361€

Return flights