Cheapest return flights from Washington to Madrid in May from 383€

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

Return flights

03 May - 23 May TAP
20 May - 26 May British Airways
12 May - 19 May Iberia
19 May - 13 Jun British Airways
03 May - 23 May Finnair direct
19 May - 13 Jun Finnair direct
21 May - 13 Jun British Airways
15 May - 06 Jun British Airways
02 May - 09 May Iberia direct
15 May - 06 Jun Finnair direct
20 May - 26 May Iberia direct
23 May - 30 May Aer Lingus
22 May - 30 May Aer Lingus
22 May - 29 May Iberia direct

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

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