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

Return flights

02 May - 13 May	Air Transat
02 May - 16 May	Air Transat
05 May - 12 May	Air Transat
05 May - 29 May	Air Transat
05 May - 20 May	Air Transat
05 May - 26 May	Air Transat
17 May - 25 May	Air Transat
22 May - 30 May	Air Transat
04 May - 29 May	Air Transat
04 May - 12 May	Air Transat
22 May - 03 Jun	Air Transat
23 May - 04 Jun	Air Transat
22 May - 05 Jun	Air Transat
27 May - 03 Jun	Air Transat
11 May - 04 Jun	Air Transat
17 May - 04 Jun	Air Transat
06 May - 03 Jun	Air Transat
24 May - 02 Jun	Air Transat
06 May - 04 Jun	Air Transat
23 May - 02 Jun	Air Transat

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 $514

Return flights