Washington to Boston

IADBOS

Fly from Washington to Boston starting at USD 64 with United Airlines.Best fare available on Sep 16, 2026.Limited seats. Better plans. Book before it's gone.

Washington to Boston cheapest flights this week

10 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 87VIEW DEAL
10 Sept
United Airlines
13:05IAD
14:50BOS
DirectUSD 175VIEW DEAL
10 Sept
Frontier Airlines
11:12IAD
10:51BOS
1 StopUSD 161VIEW DEAL
10 Sept
United Airlines
08:35IAD
10:18BOS
DirectUSD 283VIEW DEAL
11 Sept
Frontier Airlines
11:12IAD
10:51BOS
1 StopUSD 183VIEW DEAL
12 Sept
Frontier Airlines
11:12IAD
10:58BOS
1 StopUSD 173VIEW DEAL
13 Sept
Frontier Airlines
11:12IAD
10:51BOS
1 StopUSD 185VIEW DEAL
14 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 175VIEW DEAL
15 Sept
United Airlines
08:35IAD
10:18BOS
DirectUSD 175VIEW DEAL
16 Sept
United Airlines
22:15IAD
23:59BOS
DirectUSD 64VIEW 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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