Cheapest return flights from Washington to Madrid in May from $521

Best time to book flights for Washington (IAD) to Madrid (MAD) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Madrid (MAD) in May 2025 (see full year).

Return flights

13 May - 20 May Finnair direct
07 May - 13 May TAP
13 May - 19 May ITA Airways
13 May - 21 May British Airways
06 May - 13 May Finnair direct
01 May - 08 May TAP
14 May - 20 May British Airways
07 May - 21 May British Airways
12 May - 20 May British Airways
07 May - 14 May TAP
14 May - 18 Jun Turkish Airlines
27 May - 03 Jun TAP
22 May - 10 Jun Avianca
22 May - 09 Jun Avianca
29 May - 09 Jun Avianca
30 May - 06 Jun Avianca
30 May - 08 Jun Avianca
30 May - 15 Jun Avianca
30 May - 08 Jun Finnair direct
30 May - 15 Jun Finnair direct

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

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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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