Washington to Boston

IADBOS

Fly from Washington to Boston starting at USD 71 with United Airlines.Best fare available on Aug 5, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Boston cheapest flights this week

31 Jul
Frontier Airlines
20:33IAD
07:42BOS
1 StopUSD 156VIEW DEAL
1 Aug
United Airlines
15:30IAD
17:24BOS
DirectUSD 137VIEW DEAL
1 Aug
United Airlines
22:10IAD
23:59BOS
DirectUSD 120VIEW DEAL
1 Aug
Frontier Airlines
13:21IAD
09:09BOS
1 StopUSD 214VIEW DEAL
2 Aug
United Airlines
08:35IAD
10:20BOS
DirectUSD 130VIEW DEAL
3 Aug
Frontier Airlines
19:18IAD
09:09BOS
1 StopUSD 135VIEW DEAL
3 Aug
United Airlines
10:00IAD
11:52BOS
DirectUSD 140VIEW DEAL
5 Aug
United Airlines
22:10IAD
23:59BOS
DirectUSD 71VIEW DEAL
8 Aug
United Airlines
22:10IAD
23:59BOS
DirectUSD 120VIEW DEAL
9 Aug
Frontier Airlines
20:33IAD
07:46BOS
1 StopUSD 128VIEW DEAL

Washington to Boston monthly flight fare trend

Jul
from USD 156
Aug
from USD 71
Sep
from USD 60
Oct
from USD 119
Nov
No flights
Dec
from USD 136

Airport Details

Origin

Washington

Washington Dulles International Airport (IAD)

Dulles, IAD
Zone

New York

Elev

312 ft

Destination

Boston

Logan International Airport (BOS)

Boston, BOS
Zone

New York

Elev

20 ft

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