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

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Alaska Airlines, Inc.

ASAlaska Airlines, Inc.

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Washington Dulles International Airport

Washington, United States

$260 USD

-43%$148 USD

Verified 16 days ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$549 6$549 7$549 8$549 9$549 10$549 11$549 12$439 13$439 14$429 15$439 16$429 17$439 18$439 19$488 20$319 21$319 22$319 23$319 24$319 25$399 26$394 27$279 28$263 29$258 30$317 31$279 1$399 2$329

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Sunday, July 19th, 2026

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