Boston to Washington
BOSIAD
Fly from Boston to Washington starting at SAR 315 with United Airlines.
Best fare available on Jul 29, 2026.
Limited seats. Better plans. Book before it's gone.
Boston to Washington cheapest flights this week
Boston to Washington monthly flight fare trend
Jul
from SAR 315
Aug
from SAR 292
Sep
from SAR 185
Oct
No flights
Nov
No flights
Dec
from SAR 555
Airport Details
Origin
Boston
Logan International Airport (BOS)
Boston, BOS
Zone
New York
Elev
20 ft
Destination
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
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