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

Return flights

08 May - 12 May	Finnair
10 May - 19 May	Finnair
08 May - 19 May	Finnair
08 May - 15 May	Finnair
03 May - 19 May	Finnair
09 May - 23 May	Finnair
08 May - 24 May	Finnair
02 May - 23 May	Finnair
13 May - 27 May	Iberia
05 May - 13 May	British Airways
26 May - 29 Jun	TAP	direct
15 May - 06 Jun	Azores Airlines
30 May - 02 Jun	Air Transat
16 May - 06 Jun	KLM
16 May - 06 Jun	TAP	direct
15 May - 06 Jun	TAP	direct
30 May - 02 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 235€

Return flights