Cheapest return flights from Denver to Madrid in March from $511

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

Return flights

11 Mar - 18 Mar British Airways
10 Mar - 19 Mar United
17 Mar - 01 Apr Iberia
03 Mar - 10 Mar Iberia
13 Mar - 23 Mar Air Canada
01 Mar - 15 Mar Air Canada
23 Mar - 30 Mar United
09 Mar - 16 Mar Iberia
12 Mar - 20 Mar Brussels Airlines
28 Mar - 06 Apr Air Canada
27 Mar - 06 Apr Air Canada
14 Mar - 22 Mar British Airways
24 Mar - 31 Mar Iberia
27 Mar - 03 Apr Iberia

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

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