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

Return flights

07 Apr - 14 Apr	Iberia
07 Apr - 23 Apr	British Airways
08 Apr - 23 Apr	British Airways
17 Apr - 24 Apr	Iberia
12 Apr - 19 Apr	British Airways
06 Apr - 23 Apr	British Airways
01 Apr - 10 Apr	United
04 Apr - 18 Apr	British Airways
27 Apr - 04 May	Iberia
04 Apr - 12 Apr	British Airways
10 Apr - 19 Apr	KLM

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

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 April from 424€

Return flights