Cheapest return flights from Montreal to Lisbon in May from $442

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

Return flights

15 May - 22 May Air Transat
11 May - 22 May Air Transat
04 May - 11 May Air Transat direct
01 May - 11 May Air Transat
11 May - 25 May Air Transat
16 May - 25 May Air Transat
04 May - 14 May Air Transat
15 May - 18 May Air Transat
01 May - 08 May Air Transat
05 May - 12 May Air Transat
11 May - 01 Jun Air Transat
16 May - 08 Jun Air Transat
11 May - 08 Jun Air Transat
09 May - 01 Jun Air Transat
06 May - 11 Jun Air Transat
26 May - 02 Jun Air Transat direct
23 May - 06 Jun Air Transat
24 May - 06 Jun Air Transat
27 May - 03 Jun Air Transat
29 May - 05 Jun Air Transat

Also check the deals for one-way flights from Montreal 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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