Cheapest return flights from Porto to Montreal in September from 363€

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

Return flights

19 Sep - 25 Sep Air Transat direct
05 Sep - 10 Sep Lufthansa
02 Sep - 30 Sep Lufthansa
04 Sep - 11 Sep SWISS
04 Sep - 25 Sep SWISS
25 Sep - 02 Oct SWISS
02 Sep - 10 Sep Lufthansa
16 Sep - 23 Sep Air Transat direct
05 Sep - 26 Sep Air Transat
06 Sep - 13 Sep Lufthansa
02 Sep - 08 Sep Air Transat

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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