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

Return flights

15 Jul - 22 Jul	Air France
15 Jul - 29 Jul	KLM
16 Jul - 23 Jul	United
15 Jul - 29 Jul	Air Transat	direct
10 Jul - 16 Jul	Air France
13 Jul - 27 Jul	KLM
10 Jul - 24 Jul	KLM
13 Jul - 28 Jul	KLM
22 Jul - 26 Jul	Air Canada
11 Jul - 13 Jul	KLM
31 Jul - 03 Aug	United

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

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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Cheapest return flights from Porto to Montreal in July from $586

Return flights