Cheapest return flights from Ontario to Madrid in September from $487

Best time to book flights for Ontario (ONT) to Madrid (MAD) flights at AirHint

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

Return flights

23 Sep - 30 Sep Iberia
23 Sep - 03 Oct British Airways
23 Sep - 07 Oct British Airways
18 Sep - 25 Sep Iberia
25 Sep - 02 Oct Iberia
02 Sep - 09 Sep Iberia
03 Sep - 10 Sep Iberia
09 Sep - 16 Sep Iberia
10 Sep - 17 Sep Iberia
16 Sep - 23 Sep Iberia
02 Sep - 17 Sep Iberia
19 Sep - 26 Sep Iberia
20 Sep - 27 Sep Iberia
24 Sep - 02 Oct British Airways
24 Sep - 01 Oct British Airways
26 Sep - 03 Oct Iberia
28 Sep - 05 Oct Iberia
30 Sep - 07 Oct Iberia
30 Sep - 10 Oct Iberia
29 Sep - 06 Oct Iberia

Also check the deals for one-way 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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