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

Return flights

31 Jul - 14 Aug	Iberia
31 Jul - 07 Aug	Iberia
31 Jul - 03 Aug	British Airways
21 Jul - 16 Aug	British Airways
23 Jul - 07 Aug	Iberia
23 Jul - 05 Aug	British Airways
21 Jul - 05 Aug	Iberia
30 Jul - 06 Aug	British Airways
22 Jul - 11 Aug	Iberia
26 Jul - 02 Aug	British Airways
21 Jul - 31 Jul	Iberia
23 Jul - 31 Jul	Iberia
22 Jul - 31 Jul	Iberia
25 Jul - 30 Jul	Iberia
25 Jul - 31 Jul	Iberia
22 Jul - 27 Jul	Iberia

Also check the deals for one-way flights from Ontario to Madrid 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 Madrid in July from 963€

Return flights