Washington to Seattle
IADSEA
Fly from Washington to Seattle starting at SAR 537 with United Airlines.
Best fare available on Oct 1, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Seattle cheapest flights this week
Washington to Seattle monthly flight fare trend
Sep
from SAR 1,036
Oct
from SAR 537
Nov
from SAR 492
Dec
from SAR 1,014
Jan
from SAR 799
Feb
from SAR 899
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
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