Cheapest return flights from Ontario to Madrid in August from $504

AirHint found the following cheapest return flights from Ontario (ONT) to Madrid (MAD) in August 2026 (see full year).

Return flights

05 Aug - 25 Aug British Airways
05 Aug - 21 Aug British Airways
08 Aug - 22 Aug British Airways
03 Aug - 18 Aug British Airways
01 Aug - 22 Aug Iberia
01 Aug - 16 Aug British Airways
01 Aug - 17 Aug British Airways
09 Aug - 22 Aug Iberia
01 Aug - 15 Aug British Airways
03 Aug - 17 Aug British Airways

Also check the deals for one-way flights from Ontario to Madrid in August.

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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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