Cheapest one-way flights from Ontario to Madrid in September from 363€

AirHint found the following cheapest one-way flights from Ontario (ONT) to Madrid (MAD) in September 2025 (see full year).

One-Way flights

29 Sep British Airways
21 Sep Iberia
22 Sep Iberia
24 Sep British Airways
28 Sep British Airways
23 Sep British Airways
17 Sep British Airways
15 Sep jetBlue
25 Sep British Airways
09 Sep British Airways

Also check the deals for return flights from Ontario to Madrid in September.

Skyscanner

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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