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

Return flights

03 Aug - 10 Aug	Air Transat	direct
04 Aug - 11 Aug	Air Transat	direct
05 Aug - 12 Aug	Air Transat	direct
11 Aug - 18 Aug	Air Transat	direct
10 Aug - 17 Aug	Air Transat	direct
13 Aug - 20 Aug	TAP
06 Aug - 13 Aug	Air Transat	direct
12 Aug - 19 Aug	TAP
02 Aug - 09 Aug	Air Transat	direct
14 Aug - 24 Aug	TAP
27 Aug - 03 Sep	TAP
28 Aug - 04 Sep	TAP
30 Aug - 06 Sep	TAP
26 Aug - 02 Sep	TAP
31 Aug - 07 Sep	TAP
25 Aug - 01 Sep	Air France
29 Aug - 05 Sep	TAP
26 Aug - 02 Sep	Air Canada	direct
25 Aug - 01 Sep	Air Canada	direct
31 Aug - 07 Sep	Lufthansa	direct

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

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Montreal to Barcelona in August from $696

Return flights