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

Return flights

05 Dec - 11 Dec	TAP
05 Dec - 13 Dec	TAP
03 Dec - 13 Dec	TAP
07 Dec - 14 Dec	Air Transat
03 Dec - 14 Dec	Air Transat
05 Dec - 12 Dec	Air Transat
03 Dec - 15 Dec	Air Transat
01 Dec - 12 Dec	Delta
02 Dec - 12 Dec	Air France
03 Dec - 10 Dec	Air France
31 Dec - 24 Jan	Air Canada	direct
30 Dec - 24 Jan	FrenchBee
30 Dec - 24 Jan	Air Canada	direct
29 Dec - 24 Jan	Air Canada	direct
10 Dec - 12 Jan	Air Transat
24 Dec - 19 Jan	Delta
15 Dec - 13 Jan	Lufthansa	direct
30 Dec - 08 Jan	FrenchBee
28 Dec - 22 Jan	Porter Airlines (Canada) Ltd
28 Dec - 17 Jan	Porter Airlines (Canada) Ltd

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

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 December from 399€

Return flights