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

Return flights

01 Apr - 08 Apr	TAP
08 Apr - 02 May	TAP
02 Apr - 10 Apr	TAP
14 Apr - 21 Apr	Iberia	direct
04 Apr - 11 Apr	TAP
16 Apr - 25 Apr	TAP
08 Apr - 02 May	British Airways	direct
24 Apr - 01 May	Iberia	direct
01 Apr - 08 Apr	Finnair	direct
02 Apr - 10 Apr	United	direct
16 Apr - 25 Apr	British Airways	direct
03 Apr - 13 Apr	United
04 Apr - 11 Apr	Iberia	direct

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 371€

Return flights