Washington to Boston

IADBOS

Fly from Washington to Boston starting at USD 122 with United Airlines.Best fare available on Sep 5, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Boston cheapest flights this week

2 Sept
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 164VIEW DEAL
2 Sept
Frontier Airlines
11:05IAD
09:09BOS
1 StopUSD 186VIEW DEAL
3 Sept
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 186VIEW DEAL
4 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 280VIEW DEAL
4 Sept
Frontier Airlines
21:54IAD
09:09BOS
1 StopUSD 197VIEW DEAL
5 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 122VIEW DEAL
6 Sept
Frontier Airlines
20:39IAD
08:41BOS
1 StopUSD 152VIEW DEAL
7 Sept
United Airlines
06:15IAD
09:48BOS
1 StopUSD 148VIEW DEAL
7 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 282VIEW DEAL
8 Sept
United Airlines
08:35IAD
10:18BOS
DirectUSD 140VIEW DEAL

Washington to Boston monthly flight fare trend

Sep
from USD 60
Oct
from USD 71
Nov
from USD 60
Dec
from USD 115
Jan
from USD 89
Feb
No flights

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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