Cheapest return flights from Porto to Montreal in September from 392€

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

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

Return flights

09 Sep - 23 Sep Air Canada
09 Sep - 23 Sep Air Transat direct
30 Sep - 09 Oct Air Canada
30 Sep - 09 Oct Air Transat direct
15 Sep - 08 Oct United

Also check the deals for one-way flights from Porto to Montreal 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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