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

Return flights

06 May - 13 May	British Airways
07 May - 30 May	Icelandair
11 May - 22 May	Air Transat
02 May - 16 May	Icelandair
11 May - 21 May	British Airways
20 May - 01 Jun	British Airways
06 May - 22 May	KLM
09 May - 16 May	KLM
06 May - 30 May	KLM
13 May - 20 May	British Airways
07 May - 14 May	British Airways
11 May - 06 Jun	British Airways
21 May - 09 Jun	Air Transat
20 May - 01 Jun	Air Canada	direct
11 May - 06 Jun	Lufthansa	direct
21 May - 09 Jun	Lufthansa	direct

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 $516

Return flights