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

Return flights

21 Jul - 21 Aug	Air Canada
17 Jul - 19 Aug	Air Canada
27 Jul - 15 Aug	British Airways
06 Jul - 16 Jul	Air Canada
06 Jul - 23 Jul	Air Canada
13 Jul - 23 Jul	Air Canada
30 Jul - 12 Aug	Delta
30 Jul - 06 Aug	Delta
16 Jul - 23 Jul	British Airways
13 Jul - 22 Jul	British Airways
29 Jul - 05 Aug	Delta
07 Jul - 06 Aug	Delta
14 Jul - 22 Jul	Delta
15 Jul - 22 Jul	Delta
16 Jul - 30 Jul	Delta
22 Jul - 08 Aug	Delta
10 Jul - 17 Jul	Air Canada
10 Jul - 24 Jul	Air Canada
28 Jul - 04 Aug	Delta
08 Jul - 07 Aug	British Airways

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

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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Cheapest return flights from Washington to Madrid in July from $409

Return flights