Washington to Boston

IADBOS

Fly from Washington to Boston starting at USD 100 with United Airlines.Best fare available on Jul 18, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Boston cheapest flights this week

15 Jul
United Airlines
17:25IAD
19:14BOS
DirectUSD 130VIEW DEAL
15 Jul
Frontier Airlines
11:11IAD
09:09BOS
1 StopUSD 145VIEW DEAL
16 Jul
United Airlines
22:10IAD
23:59BOS
DirectUSD 131VIEW DEAL
18 Jul
United Airlines
15:30IAD
17:24BOS
DirectUSD 131VIEW DEAL
18 Jul
United Airlines
22:10IAD
23:59BOS
DirectUSD 100VIEW DEAL
21 Jul
Frontier Airlines
20:33IAD
07:46BOS
1 StopUSD 138VIEW DEAL
22 Jul
United Airlines
22:10IAD
23:59BOS
DirectUSD 120VIEW DEAL
24 Jul
Frontier Airlines
20:33IAD
07:42BOS
1 StopUSD 132VIEW DEAL
24 Jul
United Airlines
22:10IAD
23:59BOS
DirectUSD 132VIEW DEAL
1 Aug
United Airlines
15:30IAD
17:24BOS
DirectUSD 137VIEW DEAL

Washington to Boston monthly flight fare trend

Jul
from USD 100
Aug
from USD 71
Sep
from USD 93
Oct
No flights
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

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