Cheapest return flights from Ontario to Madrid in December from 634€

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

Return flights

04 Dec - 09 Dec Iberia
09 Dec - 18 Dec Iberia
25 Dec - 07 Jan Frontier Airlines
06 Dec - 18 Dec Iberia
09 Dec - 16 Dec Iberia
09 Dec - 25 Dec Iberia
30 Dec - 24 Jan Iberia
30 Dec - 20 Jan Iberia
06 Dec - 27 Dec Iberia
04 Dec - 27 Dec Iberia
28 Dec - 17 Jan Iberia
30 Dec - 13 Jan Iberia
09 Dec - 20 Dec Iberia
09 Dec - 23 Dec Iberia
27 Dec - 17 Jan Iberia
23 Dec - 17 Jan Iberia
09 Dec - 03 Jan Iberia
04 Dec - 13 Dec Iberia
25 Dec - 17 Jan Iberia
16 Dec - 06 Jan Iberia

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

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