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

Return flights

27 Aug - 30 Aug	Air Canada
30 Aug - 19 Sep	Air Transat	direct
21 Aug - 04 Sep	Air Transat	direct
14 Aug - 29 Aug	Air Transat	direct
27 Aug - 30 Aug	Air Transat	direct
04 Aug - 21 Aug	Air Transat	direct
01 Aug - 22 Aug	Air Transat	direct
01 Aug - 10 Aug	Air Transat	direct
17 Aug - 31 Aug	Air Transat	direct
04 Aug - 11 Aug	Air Transat	direct
03 Aug - 15 Aug	Air Transat	direct
01 Aug - 16 Aug	Air Transat	direct

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

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 Barcelona to Montreal in August from $469

Return flights