AirHint found the following cheapest one-way flights from Montreal (YUL) to Lisbon (LIS) in October 2025 (see full year).

One-Way flights

06 Oct	Air Transat
03 Oct	FrenchBee
20 Oct	Porter Airlines (Canada) Ltd
15 Oct	FrenchBee
20 Oct	Air Canada	direct
13 Oct	Air Canada	direct
22 Oct	Air Canada	direct
21 Oct	Air Canada	direct
24 Oct	Air Canada	direct
17 Oct	TAP	direct

Also check the deals for return flights from Montreal to Lisbon in October.

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest one-way flights from Montreal to Lisbon in October from 242€

One-Way flights