Cheapest return flights from Ontario to Madrid in March from $430

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

Return flights

09 Mar - 30 Mar British Airways
03 Mar - 10 Mar Iberia
23 Mar - 29 Mar British Airways
17 Mar - 24 Mar British Airways
13 Mar - 18 Mar British Airways
01 Mar - 08 Mar British Airways
22 Mar - 30 Mar British Airways
16 Mar - 30 Mar British Airways
09 Mar - 16 Mar KLM
22 Mar - 31 Mar British Airways
31 Mar - 14 Apr British Airways
26 Mar - 09 Apr British Airways
23 Mar - 01 Apr British Airways
18 Mar - 01 Apr British Airways
17 Mar - 01 Apr British Airways
30 Mar - 09 Apr British Airways
31 Mar - 09 Apr British Airways
30 Mar - 08 Apr British Airways
29 Mar - 08 Apr British Airways
28 Mar - 11 Apr British Airways

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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