Cheapest return flights from Ontario to Madrid in March from $432

AirHint found the following cheapest return flights from Ontario (ONT) to Madrid (MAD) in March 2026 (see full year).

Return flights

01 Mar - 18 Mar British Airways
02 Mar - 11 Mar British Airways
03 Mar - 10 Mar British Airways
01 Mar - 12 Mar American Airlines
03 Mar - 17 Mar Iberia
01 Mar - 08 Mar Iberia
04 Mar - 11 Mar British Airways
01 Mar - 31 Mar British Airways
04 Mar - 12 Mar British Airways
18 Mar - 25 Mar British Airways
29 Mar - 09 Apr British Airways
24 Mar - 05 Apr British Airways
23 Mar - 05 Apr British Airways
22 Mar - 08 Apr British Airways
25 Mar - 04 Apr British Airways
29 Mar - 06 Apr British Airways
31 Mar - 07 Apr Iberia
29 Mar - 05 Apr British Airways
31 Mar - 11 Apr British Airways
24 Mar - 07 Apr Iberia

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

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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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