Boston to Washington

BOSIAD

Fly from Boston to Washington starting at SAR 185 with United Airlines.Best fare available on Sep 9, 2026.Limited seats. Better plans. Book before it's gone.

Boston to Washington cheapest flights this week

8 Sept
Frontier Airlines
12:45BOS
22:52IAD
1 StopSAR 603VIEW DEAL
9 Sept
United Airlines
09:30BOS
11:11IAD
DirectSAR 292VIEW DEAL
9 Sept
United Airlines
19:23BOS
21:08IAD
DirectSAR 185VIEW DEAL
10 Sept
Frontier Airlines
12:54BOS
00:10IAD
1 StopSAR 503VIEW DEAL
11 Sept
Frontier Airlines
12:54BOS
00:10IAD
1 StopSAR 525VIEW DEAL
11 Sept
Frontier Airlines
11:36BOS
10:17IAD
1 StopSAR 588VIEW DEAL
11 Sept
United Airlines
05:45BOS
07:20IAD
DirectSAR 463VIEW DEAL
13 Sept
United Airlines
05:45BOS
07:20IAD
DirectSAR 648VIEW DEAL
14 Sept
United Airlines
19:00BOS
22:59IAD
1 StopSAR 315VIEW DEAL
15 Sept
Frontier Airlines
12:52BOS
00:10IAD
1 StopSAR 599VIEW DEAL

Boston to Washington monthly flight fare trend

Sep
from SAR 185
Oct
from SAR 226
Nov
from SAR 474
Dec
from SAR 285
Jan
No flights
Feb
No flights

Airport Details

Origin

Boston

Logan International Airport (BOS)

Boston, BOS
Zone

New York

Elev

20 ft

Destination

Washington

Washington Dulles International Airport (IAD)

Dulles, IAD
Zone

New York

Elev

312 ft

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