Cheapest return flights from Porto to Montreal in August from $457

AirHint found the following cheapest return flights from Porto (OPO) to Montreal (YUL) in August 2026 (see full year).

Return flights

23 Aug - 10 Sep Air Transat
28 Aug - 10 Sep Air Transat
16 Aug - 24 Aug Air Transat direct
19 Aug - 24 Aug Air Transat direct
16 Aug - 22 Aug Air Transat direct
16 Aug - 29 Aug Air Transat direct
18 Aug - 24 Aug Air Transat direct
18 Aug - 22 Aug Air Transat direct
19 Aug - 04 Sep SWISS
18 Aug - 26 Aug Air Transat
05 Aug - 29 Aug Air Transat direct
16 Aug - 23 Aug Air Transat
17 Aug - 23 Aug TAP
20 Aug - 05 Sep United
19 Aug - 04 Sep Lufthansa direct

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

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