Washington to Boston

IADBOS

Fly from Washington to Boston starting at USD 104 with United Airlines.Best fare available on Aug 16, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Boston cheapest flights this week

15 Aug
United Airlines
17:28IAD
19:19BOS
DirectUSD 162VIEW DEAL
16 Aug
United Airlines
22:15IAD
23:59BOS
DirectUSD 104VIEW DEAL
17 Aug
United Airlines
22:15IAD
23:59BOS
DirectUSD 128VIEW DEAL
17 Aug
United Airlines
13:05IAD
14:50BOS
DirectUSD 248VIEW DEAL
18 Aug
United Airlines
22:15IAD
23:59BOS
DirectUSD 150VIEW DEAL
19 Aug
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 149VIEW DEAL
20 Aug
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 126VIEW DEAL
20 Aug
United Airlines
22:15IAD
23:59BOS
DirectUSD 156VIEW DEAL
22 Aug
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 112VIEW DEAL
24 Aug
United Airlines
08:35IAD
10:18BOS
DirectUSD 181VIEW DEAL

Washington to Boston monthly flight fare trend

Aug
from USD 77
Sep
from USD 60
Oct
from USD 77
Nov
from USD 118
Dec
from USD 136
Jan
from USD 89

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

Flights from Washington

Flights from Washington to AtlantaFlights from Washington to AustinFlights from Washington to CharlotteFlights from Washington to DenverFlights from Washington to DallasFlights from Washington to DetroitFlights from Washington to NewarkFlights from Washington to Fort LauderdaleFlights from Washington to HonoluluFlights from Washington to Houston