Cheapest return flights from Toronto to Lisbon in May from $489

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

Return flights

27 May - 08 Jun Air Transat
30 May - 08 Jun Air Transat
29 May - 07 Jun Air Transat
05 May - 11 May Air Transat
30 May - 09 Jun Air Transat
12 May - 27 May Air Transat
11 May - 27 May Air Transat
12 May - 20 May Air Transat
18 May - 27 May Air Transat
04 May - 29 Jun Air Transat
27 May - 06 Jun Air Transat
27 May - 02 Jun Air Transat
13 May - 20 May Air Transat
06 May - 09 May Air Transat
03 May - 11 May Air Transat
11 May - 29 Jun Air Transat
06 May - 18 May Air Transat
05 May - 18 May Air Transat
17 May - 01 Jun Air Transat
24 May - 03 Jun Air Transat

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

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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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