SEA to IAD from $255 in economy – flightdeals.net

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Alaska Airlines, Inc.

ASAlaska Airlines, Inc.

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Washington Dulles International Airport

Washington, United States

$458 USD

-44%$255 USD

Verified about 4 hours ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4$957 5$933 6$892 7$892 8$858 9$858 10$707 11$707 12$718 13$707 14$718 15$718 16$672 17$506 18$506 19$571 20$627 21$687 22$541 23$466 24$295 25$255 26$255 27$386 28$340 29$386 30$335 1$325 2$325 3$295 4$380 5$541

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Wednesday, June 3rd, 2026

0 round-trip options

No flight details available for this date.