Boston to Washington
BOSIAD
Fly from Boston to Washington starting at USD 49 with United Airlines.
Best fare available on Jun 3, 2026.
Limited seats. Better plans. Book before it's gone.
Boston to Washington cheapest flights this week
Boston to Washington monthly flight fare trend
May
from USD 99
Jun
from USD 49
Jul
No flights
Aug
No flights
Sep
No flights
Oct
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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