Boston to Washington
BOSIAD
Fly from Boston to Washington starting at USD 118 with United Airlines.
Best fare available on Aug 8, 2026.
Limited seats. Better plans. Book before it's gone.
Boston to Washington cheapest flights this week
Boston to Washington monthly flight fare trend
Aug
from USD 79
Sep
from USD 50
Oct
No flights
Nov
No flights
Dec
from USD 150
Jan
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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