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

Return flights

16 Oct - 23 Oct	TAP
16 Oct - 25 Oct	TAP
17 Oct - 25 Oct	TAP
01 Oct - 08 Oct	TAP
12 Oct - 21 Oct	FrenchBee
22 Oct - 05 Nov	FrenchBee
15 Oct - 22 Oct	FrenchBee
16 Oct - 22 Oct	TAP
06 Oct - 12 Oct	FrenchBee
05 Oct - 16 Oct	Air Transat
05 Oct - 12 Oct	FrenchBee
29 Oct - 05 Nov	FrenchBee
26 Oct - 14 Nov	FrenchBee
26 Oct - 07 Nov	FrenchBee
28 Oct - 05 Nov	Porter Airlines (Canada) Ltd
31 Oct - 07 Nov	FrenchBee
24 Oct - 07 Nov	FrenchBee
08 Oct - 01 Nov	FrenchBee
18 Oct - 02 Nov	FrenchBee
08 Oct - 02 Nov	FrenchBee

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

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 Montreal to Barcelona in October from 397€

Return flights