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

Return flights

04 May - 13 May	Iberia
20 May - 27 May	Iberia
05 May - 18 May	Icelandair
05 May - 15 May	Icelandair
14 May - 18 May	Icelandair
01 May - 11 May	Icelandair
07 May - 18 May	Icelandair
13 May - 18 May	Icelandair
04 May - 18 May	Icelandair
04 May - 11 May	Icelandair
20 May - 03 Jun	WestJet
25 May - 01 Jun	WestJet
27 May - 17 Jun	KLM
28 May - 04 Jun	Delta
27 May - 03 Jun	Delta
17 May - 06 Jun	Icelandair
20 May - 03 Jun	Lufthansa	direct
27 May - 03 Jun	Air Canada	direct
20 May - 10 Jun	Icelandair
18 May - 13 Jun	Finnair

Also check the deals for one-way flights from Toronto 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.

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Cheapest return flights from Toronto to Barcelona in May from $463

Return flights