AirHint found the following cheapest return flights from Ontario (ONT) to Barcelona (BCN) in July 2025 (see full year).

Return flights

26 Jul - 30 Aug	Iberia
24 Jul - 21 Aug	Iberia
26 Jul - 08 Aug	Iberia
26 Jul - 06 Aug	British Airways
24 Jul - 07 Aug	British Airways
24 Jul - 08 Aug	British Airways
30 Jul - 10 Aug	British Airways
15 Jul - 23 Jul	Iberia
23 Jul - 31 Jul	British Airways
29 Jul - 06 Aug	British Airways
16 Jul - 24 Jul	British Airways
29 Jul - 05 Aug	British Airways
18 Jul - 25 Jul	British Airways
17 Jul - 23 Jul	British Airways
18 Jul - 23 Jul	British Airways
22 Jul - 29 Jul	British Airways
21 Jul - 29 Jul	British Airways
18 Jul - 22 Jul	British Airways
24 Jul - 03 Aug	British Airways
15 Jul - 25 Jul	British Airways

Also check the deals for one-way flights from Ontario to Barcelona in July.

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 Ontario to Barcelona in July from $799

Return flights