Cheapest one-way flights from Montreal to Porto in September from $280

Best time to book flights for Montreal (YUL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest one-way flights from Montreal (YUL) to Porto (OPO) in September 2025 (see full year).

One-Way flights

15 Sep Azores Airlines
20 Sep Azores Airlines
27 Sep Azores Airlines
25 Sep Azores Airlines
19 Sep FrenchBee
26 Sep FrenchBee
01 Sep FrenchBee
04 Sep TAP
15 Sep Air Transat direct
27 Sep Air Transat direct

Also check the deals for return flights from Montreal to Porto in September.

Skyscanner

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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