IAD to SEA from $148 in economy – flightdeals.net

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Alaska Airlines, Inc.

ASAlaska Airlines, Inc.

One Way•Economy

Washington Dulles International Airport

Washington, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$258 USD

-43%$148 USD

Verified 1 day ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3$539 4$539 5$539 6$539 7$539 8$539 9$439 10$439 11$439 12$434 13$434 14$439 15$434 16$314 17$539 18$539 19$394 20$314 21$319 22$314 23$279 24$279 25$279 26$524 27$369 28$309 29$309 30$279 1$384 2$369 3$183 4$188 5$233

Fair Availability

20% of dates checked are available within 10% of the lowest price

Tuesday, June 2nd, 2026

No flight details available for this date.