Cheapest return flights from Montreal to Barcelona in September from 643€

Best time to book flights for Montreal (YUL) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to Barcelona (BCN) in September 2025 (see full year).

Return flights

25 Sep - 06 Oct Air Canada direct
04 Sep - 01 Oct Air Transat direct
10 Sep - 25 Sep Air Transat direct
14 Sep - 21 Sep Air Transat direct
26 Sep - 12 Oct Air Canada direct
04 Sep - 14 Sep Air Transat direct
01 Sep - 29 Sep Air Transat direct
05 Sep - 14 Sep Air Transat direct
04 Sep - 20 Sep Air Transat direct
01 Sep - 15 Sep Air Canada direct
06 Sep - 13 Sep Air Canada direct

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

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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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