Cheapest return flights from Washington to Madrid in May from 510€

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

Return flights

11 May - 18 May TAP
05 May - 21 May TAP
12 May - 27 May TAP
12 May - 19 May TAP
05 May - 12 May TAP
04 May - 07 May TAP
04 May - 24 May Royal Air Maroc
25 May - 03 Jun Porter Airlines (Canada) Ltd
05 May - 12 May Finnair direct
05 May - 21 May Finnair direct
08 May - 23 May TAP
26 May - 08 Jun Porter Airlines (Canada) Ltd
17 May - 02 Jun Aer Lingus
25 May - 01 Jun Porter Airlines (Canada) Ltd
23 May - 07 Jun Icelandair
28 May - 09 Jun Porter Airlines (Canada) Ltd
18 May - 05 Jun Aer Lingus
17 May - 02 Jun Iberia direct
18 May - 02 Jun Aer Lingus
30 May - 06 Jun Porter Airlines (Canada) Ltd

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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