Cheapest return flights from Toronto to Lisbon in September from $449

AirHint found the following cheapest return flights from Toronto (YTZ) to Lisbon (LIS) in September 2025 (see full year).

Return flights

07 Sep - 17 Sep Air Transat
09 Sep - 17 Sep Air Transat
03 Sep - 10 Sep Air Transat
02 Sep - 10 Sep Air Transat
28 Sep - 08 Oct Air Transat
27 Sep - 14 Oct Air Transat
03 Sep - 09 Sep Porter Airlines (Canada) Ltd
23 Sep - 30 Sep Air Transat
09 Sep - 18 Sep Air Transat
22 Sep - 30 Sep Air Transat
01 Sep - 08 Sep Air Transat
01 Sep - 01 Oct Air Transat
10 Sep - 16 Sep Air Transat
29 Sep - 07 Oct Air Transat
20 Sep - 04 Oct Air Transat
30 Sep - 15 Oct Air Transat
06 Sep - 04 Oct Air Transat
24 Sep - 06 Oct Porter Airlines (Canada) Ltd
21 Sep - 06 Oct Air Transat
18 Sep - 01 Oct Air Transat

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

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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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