Cheapest one-way flights from Ontario to Madrid in August from $326

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

One-Way flights

11 Aug Iberia
18 Aug British Airways
10 Aug British Airways
02 Aug British Airways
04 Aug British Airways
12 Aug British Airways
19 Aug British Airways
17 Aug British Airways
01 Aug British Airways
31 Aug Iberia

Also check the deals for return 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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