Cheapest return flights from Washington to Madrid in May from $545

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

Return flights

12 May - 20 May TAP
05 May - 11 May ITA Airways
05 May - 12 May ITA Airways
01 May - 07 May TAP
01 May - 05 May TAP
07 May - 12 May TAP
03 May - 19 May TAP
06 May - 11 May TAP
06 May - 12 May TAP
05 May - 21 May TAP
05 May - 03 Jun Turkish Airlines
19 May - 02 Jun TAP
26 May - 02 Jun TAP
17 May - 07 Jun Icelandair
25 May - 04 Jun Aer Lingus
18 May - 07 Jun Aer Lingus
27 May - 04 Jun Aer Lingus
19 May - 07 Jun TAP
29 May - 03 Jun Icelandair
16 May - 07 Jun Aer Lingus

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

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