Cheapest return flights from Ontario to Madrid in August from $596

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 August 2025 (see full year).

Return flights

13 Aug - 20 Aug Iberia
19 Aug - 26 Aug British Airways
25 Aug - 06 Sep Iberia
19 Aug - 28 Aug Iberia
31 Aug - 21 Sep British Airways
14 Aug - 21 Aug Iberia
25 Aug - 01 Sep American Airlines
03 Aug - 22 Aug KLM
25 Aug - 07 Sep Iberia
18 Aug - 31 Aug KLM
03 Aug - 25 Aug Iberia
21 Aug - 28 Aug Iberia
07 Aug - 29 Aug Iberia
31 Aug - 11 Sep British Airways
22 Aug - 29 Aug Iberia
31 Aug - 07 Sep Iberia
28 Aug - 11 Sep British Airways
26 Aug - 02 Sep Iberia
27 Aug - 01 Sep British Airways
30 Aug - 06 Sep Iberia

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

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