Cheapest return flights from Ontario to Madrid in October from $586

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 October 2025 (see full year).

Return flights

15 Oct - 23 Oct Iberia
16 Oct - 23 Oct Iberia
04 Oct - 13 Oct British Airways
07 Oct - 14 Oct Iberia
11 Oct - 18 Oct British Airways
08 Oct - 13 Oct Iberia
18 Oct - 28 Oct British Airways
02 Oct - 20 Oct Iberia
01 Oct - 05 Oct Iberia
10 Oct - 17 Oct Iberia

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

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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid