Boston to Washington

BOSIAD

Fly from Boston to Washington starting at USD 50 with United Airlines.Best fare available on Sep 9, 2026.Limited seats. Better plans. Book before it's gone.

Boston to Washington cheapest flights this week

3 Sept
United Airlines
05:45BOS
07:20IAD
DirectUSD 125VIEW DEAL
4 Sept
Frontier Airlines
09:36BOS
17:14IAD
1 StopUSD 180VIEW DEAL
4 Sept
United Airlines
05:45BOS
07:20IAD
DirectUSD 109VIEW DEAL
5 Sept
Frontier Airlines
12:45BOS
22:52IAD
1 StopUSD 187VIEW DEAL
5 Sept
United Airlines
19:23BOS
21:08IAD
DirectUSD 109VIEW DEAL
7 Sept
United Airlines
05:45BOS
07:20IAD
DirectUSD 282VIEW DEAL
8 Sept
Frontier Airlines
12:45BOS
22:52IAD
1 StopUSD 163VIEW DEAL
9 Sept
United Airlines
09:30BOS
11:11IAD
DirectUSD 79VIEW DEAL
9 Sept
United Airlines
19:23BOS
21:08IAD
DirectUSD 50VIEW DEAL
10 Sept
Frontier Airlines
12:54BOS
00:10IAD
1 StopUSD 136VIEW DEAL

Boston to Washington monthly flight fare trend

Sep
from USD 50
Oct
from USD 61
Nov
from USD 128
Dec
from USD 77
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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