AirHint found the following cheapest return flights from Montreal (YUL) to Barcelona (BCN) in May 2026 (see full year).

Return flights

22 May - 31 May	SWISS
06 May - 13 May	Air France
18 May - 27 May	Air France
05 May - 12 May	Air France
04 May - 11 May	Air France
01 May - 08 May	Air France
03 May - 10 May	Air France
15 May - 22 May	Air France
17 May - 24 May	Air France
19 May - 26 May	Air France
27 May - 06 Jun	TAP
27 May - 17 Jun	FrenchBee
26 May - 02 Jun	Air France
28 May - 04 Jun	Air France
01 May - 03 Jun	FrenchBee
25 May - 03 Jun	FrenchBee
25 May - 01 Jun	Air France
27 May - 03 Jun	FrenchBee
30 May - 06 Jun	Azores Airlines
29 May - 05 Jun	FrenchBee

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

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 May from 391€

Return flights