Madrid (MAD) to Seattle / Tacoma (SEA) cheap flight deal from $660 USD in economy class

AYFinnair

Round Trip•Economy

MAD

Madrid-Barajas Airport

Madrid, Spain

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$1,151 USD

-43%$660 USD

Verified Sep 20, 2025 at 4:34 PM

September 2025

Today

Mon

Tue

Wed

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Sun

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24$2,140 25$1,555 26$1,574 27$9,441 28 29$1,322 30$888 1$912 2$1,157 3$907 4$1,218 5$1,218

Limited Availability

18% of dates checked are available within 10% of the lowest price

Saturday, September 27th, 2025

6 round-trip options

Returning

Mon, Oct 6, 2025•9 Day Trip

$9,441 USD

Google Flights

Returning

Tue, Oct 7, 2025•10 Day Trip

$9,666 USD

Google Flights

Returning

Wed, Oct 8, 2025•11 Day Trip

$9,765 USD

Google Flights

Returning

Thu, Oct 9, 2025•12 Day Trip

$9,752 USD

Google Flights

Returning

Fri, Oct 10, 2025•13 Day Trip

$9,871 USD

Google Flights

Returning

Sat, Oct 11, 2025•14 Day Trip

$9,540 USD

Google Flights