Boston to Washington

BOSIAD

Fly from Boston to Washington starting at USD 85 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

23 Jul
United Airlines
12:35BOS
14:43IAD
DirectUSD 231VIEW DEAL
24 Jul
Frontier Airlines
11:59BOS
22:55IAD
1 StopUSD 129VIEW DEAL
25 Jul
United Airlines
18:05BOS
20:20IAD
DirectUSD 150VIEW DEAL
27 Jul
United Airlines
05:45BOS
07:23IAD
DirectUSD 146VIEW DEAL
29 Jul
United Airlines
05:45BOS
07:23IAD
DirectUSD 85VIEW DEAL
29 Jul
United Airlines
12:35BOS
14:43IAD
DirectUSD 135VIEW DEAL
1 Aug
United Airlines
05:45BOS
07:23IAD
DirectUSD 122VIEW DEAL
1 Aug
United Airlines
09:25BOS
11:07IAD
DirectUSD 150VIEW DEAL
1 Aug
Frontier Airlines
12:56BOS
22:52IAD
1 StopUSD 185VIEW DEAL
2 Aug
United Airlines
05:45BOS
07:23IAD
DirectUSD 142VIEW DEAL

Boston to Washington monthly flight fare trend

Jul
from USD 85
Aug
from USD 79
Sep
from USD 51
Oct
No flights
Nov
No flights
Dec
from USD 150

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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