AirHint found the following cheapest return flights from Toronto (YYZ) to Barcelona (BCN) in August 2025 (see full year).

Return flights

17 Aug - 18 Sep	WestJet
24 Aug - 08 Sep	WestJet
24 Aug - 04 Sep	WestJet
17 Aug - 09 Sep	WestJet
25 Aug - 04 Sep	WestJet
25 Aug - 09 Sep	WestJet
19 Aug - 09 Sep	WestJet
25 Aug - 16 Sep	WestJet
17 Aug - 27 Aug	WestJet
26 Aug - 16 Sep	WestJet
31 Aug - 14 Sep	WestJet
17 Aug - 23 Aug	WestJet
06 Aug - 20 Aug	WestJet
14 Aug - 24 Aug	Flair Airlines
06 Aug - 28 Aug	Air Transat
19 Aug - 26 Aug	WestJet
12 Aug - 26 Aug	WestJet
17 Aug - 24 Aug	WestJet
18 Aug - 24 Aug	WestJet
14 Aug - 20 Aug	WestJet

Also check the deals for one-way flights from Toronto to Barcelona in August.

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 August from $390

Return flights