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

Return flights

28 Jul - 03 Aug	SWISS
31 Jul - 09 Aug	Finnair	direct
30 Jul - 09 Aug	Finnair	direct
27 Jul - 03 Aug	TAP
24 Jul - 07 Aug	Brussels Airlines
27 Jul - 03 Aug	Finnair	direct
28 Jul - 03 Aug	Finnair	direct
24 Jul - 07 Aug	Iberia	direct
01 Jul - 11 Jul	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 543€

Return flights