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

Return flights

07 May - 14 May	TAP	direct
07 May - 11 May	TAP	direct
06 May - 10 May	TAP	direct
06 May - 11 May	TAP	direct
08 May - 11 May	TAP	direct
01 May - 14 May	TAP	direct
28 May - 09 Jun	Azores Airlines
15 May - 24 May	TAP	direct
11 May - 18 May	Air Canada
16 May - 20 May	Air Canada
16 May - 20 May	TAP	direct
30 May - 07 Jun	Lufthansa
28 May - 09 Jun	Lufthansa	direct
29 May - 08 Jun	Azores Airlines
29 May - 08 Jun	Lufthansa	direct
30 May - 07 Jun	TAP	direct

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

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 May from 486€

Return flights