AirHint found the following cheapest return flights from Ontario (ONT) to Barcelona (BCN) in July 2026 (see full year).

Return flights

08 Jul - 15 Jul	Alaska Airlines
30 Jul - 05 Aug	British Airways
23 Jul - 06 Aug	British Airways
20 Jul - 27 Jul	Iberia
03 Jul - 13 Jul	British Airways
11 Jul - 19 Jul	British Airways
09 Jul - 18 Jul	Iberia
10 Jul - 18 Jul	Iberia
03 Jul - 20 Jul	British Airways
04 Jul - 12 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 $1075

Return flights