Cheapest return flights from Montreal to Porto in August from $548

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

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

Return flights

23 Aug - 30 Aug Azores Airlines
26 Aug - 02 Sep Azores Airlines
25 Aug - 01 Sep Azores Airlines
28 Aug - 04 Sep Azores Airlines
30 Aug - 06 Sep Azores Airlines
19 Aug - 26 Aug Air Transat direct
26 Aug - 02 Sep Air Transat direct
27 Aug - 03 Sep Air Transat
31 Aug - 07 Sep Air Transat
27 Aug - 02 Sep Air Transat
23 Aug - 28 Aug Air Canada direct
27 Aug - 02 Sep Lufthansa direct
18 Aug - 25 Aug Azores Airlines
20 Aug - 27 Aug Air Transat
12 Aug - 19 Aug Air Canada
21 Aug - 28 Aug Air Canada
26 Aug - 01 Sep Azores Airlines
05 Aug - 12 Aug Air Canada
05 Aug - 10 Aug Air Transat direct
12 Aug - 19 Aug Air Transat direct

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

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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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