Cheapest return flights from Washington to Madrid in May from 460€

AirHint found the following cheapest return flights from Washington (IAD) to Madrid (MAD) in May 2026 (see full year).

Return flights

20 May - 26 May British Airways
20 May - 03 Jun United
13 May - 20 May Iberia
03 May - 10 May Scandinavian Airlines
20 May - 25 May British Airways
08 May - 15 May Iberia direct
03 May - 10 May Iberia direct
21 May - 26 May Air Canada
21 May - 04 Jun Air Canada
24 May - 02 Jun British Airways
25 May - 02 Jun British Airways
24 May - 02 Jun Iberia direct
25 May - 02 Jun Finnair direct
21 May - 25 May Air Canada
24 May - 01 Jun British Airways
24 May - 01 Jun Iberia direct
24 May - 31 May United
24 May - 31 May Iberia direct
29 May - 07 Jun TAP
23 May - 01 Jun British Airways

Also check the deals for one-way flights from Washington to Madrid in May.

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