AirHint found the following cheapest one-way flights from Montreal (YUL) to Barcelona (BCN) in September 2026 (see full year).
One-Way flights
| 20 Sep | FrenchBee | ||
| 16 Sep | FrenchBee | ||
| 18 Sep | FrenchBee | ||
| 28 Sep | FrenchBee | ||
| 19 Sep | FrenchBee | ||
| 17 Sep | Air Transat | ||
| 24 Sep | Air Transat | ||
| 29 Sep | Air Transat | ||
| 15 Sep | Air Transat | direct | |
| 20 Sep | Air Transat | direct |
Also check the deals for return flights from Montreal to Barcelona in September.
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