Washington (IAD) to Madrid (MAD) flight deal from $424 USD in economy class – flightdeals.net

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Finnair

Round Trip•Economy

Washington Dulles International Airport

Washington, United States

Madrid-Barajas Airport

$1,035 USD

-59%$424 USD

Verified Nov 30, 2025 at 10:23 PM

December 2025

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2$474 3 4$524 5 6 7$474 8 9$474 10 11$2,266 12 13 14$1,045 15 16$1,045 17 18 19 20 21$6,358 22 23$2,618 24 25$3,735 26 27 28$1,892 29 30$575 31 1$625 2 3 4$1,625

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Sunday, December 21st, 2025

3 round-trip options

Returning

Sun, Dec 28, 2025•7 Day Trip

$6,358 USD

Returning

Tue, Dec 30, 2025•9 Day Trip

$7,548 USD

Returning

Thu, Jan 1, 2026•11 Day Trip

$7,548 USD