Cheapest return flights from Montreal to Porto in August from $533

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

Return flights

26 Aug - 23 Sep Air Transat direct
27 Aug - 03 Sep Air Transat
24 Aug - 05 Sep Air Transat
26 Aug - 02 Sep Air Transat direct
31 Aug - 07 Sep Air Transat
28 Aug - 04 Sep Air Canada
16 Aug - 21 Sep Air Canada direct
28 Aug - 11 Sep KLM
26 Aug - 19 Sep Air Transat direct
21 Aug - 28 Aug Air Canada
20 Aug - 27 Aug Air Transat
14 Aug - 26 Aug Air Transat direct
19 Aug - 26 Aug Air Transat direct
29 Aug - 05 Sep FrenchBee
14 Aug - 24 Aug Air Transat direct
04 Aug - 14 Aug Air Canada direct
16 Aug - 24 Aug Air Canada direct
04 Aug - 26 Aug Air Canada direct
06 Aug - 26 Aug Lufthansa direct
22 Aug - 29 Aug TAP

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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