Boston to Washington
BOSIAD
Fly from Boston to Washington starting at USD 60 with United Airlines.
Best fare available on Sep 15, 2026.
Limited seats. Better plans. Book before it's gone.
Boston to Washington cheapest flights this week
Boston to Washington monthly flight fare trend
Sep
from USD 60
Oct
from USD 61
Nov
from USD 128
Dec
from USD 73
Jan
No flights
Feb
No flights
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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