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

Return flights

02 Oct - 09 Oct	Azores Airlines
15 Oct - 12 Nov	FrenchBee
09 Oct - 16 Oct	Azores Airlines
15 Oct - 20 Oct	TAP
15 Oct - 29 Oct	TAP
01 Oct - 22 Oct	TAP
01 Oct - 23 Oct	TAP
12 Oct - 19 Oct	TAP
01 Oct - 08 Oct	TAP
13 Oct - 20 Oct	TAP
15 Oct - 22 Oct	TAP
24 Oct - 09 Nov	FrenchBee
21 Oct - 11 Nov	Air France
27 Oct - 03 Nov	Air France
29 Oct - 05 Nov	KLM
21 Oct - 11 Nov	Air Canada	direct
18 Oct - 01 Nov	Air Canada	direct
15 Oct - 12 Nov	Air Canada	direct
25 Oct - 01 Nov	Air Canada	direct
28 Oct - 04 Nov	Air Canada	direct

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Montreal to Barcelona in October from $554

Return flights