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

Return flights

07 Apr - 13 Apr	TAP
03 Apr - 13 Apr	TAP
23 Apr - 07 May	TAP
26 Apr - 10 May	Scandinavian Airlines
03 Apr - 10 Apr	TAP
13 Apr - 20 Apr	TAP
23 Apr - 30 Apr	TAP
25 Apr - 09 May	TAP
13 Apr - 20 Apr	Iberia	direct
23 Apr - 30 Apr	Iberia	direct
23 Apr - 07 May	American Airlines	direct
26 Apr - 10 May	American Airlines	direct
25 Apr - 09 May	Iberia	direct
03 Apr - 13 Apr	Finnair	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 $410

Return flights