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

Return flights

06 Jul - 17 Jul	Air Canada
24 Jul - 14 Aug	Air Canada
24 Jul - 13 Aug	United
12 Jul - 21 Jul	Air Canada
14 Jul - 21 Jul	Air Canada
06 Jul - 30 Jul	Air Canada
06 Jul - 27 Jul	British Airways
06 Jul - 03 Aug	British Airways
06 Jul - 13 Jul	Air Canada
02 Jul - 30 Jul	Air Canada
16 Jul - 23 Jul	Air France
16 Jul - 22 Jul	Air France
16 Jul - 06 Aug	Air France
14 Jul - 21 Jul	British Airways	direct
24 Jul - 13 Aug	Iberia	direct
06 Jul - 03 Aug	Finnair	direct
24 Jul - 14 Aug	Iberia	direct

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 549€

Return flights