AirHint found the following cheapest return flights from Montreal (YUL) to Lisbon (LIS) in April 2026 (see full year).

Return flights

20 Apr - 06 May	Finnair
24 Apr - 07 May	Finnair
27 Apr - 07 May	Finnair
24 Apr - 06 May	Finnair
27 Apr - 06 May	Finnair
20 Apr - 07 May	Finnair
21 Apr - 07 May	Finnair
24 Apr - 05 May	Finnair
24 Apr - 11 May	Finnair
24 Apr - 08 May	Finnair
20 Apr - 30 Apr	Finnair
18 Apr - 25 Apr	Finnair
20 Apr - 30 Apr	Air Transat	direct
06 Apr - 16 Apr	Air Transat	direct
07 Apr - 14 Apr	Air Transat
15 Apr - 22 Apr	Air Transat
20 Apr - 27 Apr	Air Transat	direct
14 Apr - 21 Apr	Air Transat
21 Apr - 28 Apr	Air Transat
22 Apr - 29 Apr	Air Transat

Also check the deals for one-way flights from Montreal to Lisbon in April.

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 Montreal to Lisbon in April from 297€

Return flights