AirHint found the following cheapest one-way flights from Montreal (YUL) to Lisbon (LIS) in May 2026 (see full year).
One-Way flights
| 07 May | Azores Airlines | ||
| 10 May | FrenchBee | ||
| 25 May | Azores Airlines | ||
| 11 May | Azores Airlines | ||
| 30 May | FrenchBee | ||
| 08 May | FrenchBee | ||
| 29 May | FrenchBee | ||
| 03 May | FrenchBee | ||
| 04 May | FrenchBee | ||
| 27 May | FrenchBee |
Also check the deals for return flights from Montreal to Lisbon in May.
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