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Get United's best fares today on flights from Boston to Washington from *

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Low fare calendar for flights from Boston (BOS) to Washington (IAD)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1
2
3
4
5
6
7
8
from
$344*
Viewed:20 hours ago
Economy
Return:12/22/19
9
from
$304*
Viewed:10 hours ago
Economy
Return:01/06/20
10
from
$353*
Viewed:an hour ago
Economy
Return:12/24/19
11
from
$257*
Viewed:an hour ago
Economy
Return:12/25/19
12
from
$266*
Viewed:an hour ago
Economy
Return:12/26/19
13
from
$277*
Viewed:an hour ago
Economy
Return:12/27/19
14
from
$297*
Viewed:an hour ago
Economy
Return:12/28/19
15
from
$212*
Viewed:11 hours ago
Economy
Return:01/26/20
16
from
$241*
Viewed:an hour ago
Economy
Return:12/23/19
17
from
$229*
Viewed:an hour ago
Economy
Return:12/31/19
18
from
$192*
Viewed:an hour ago
Economy
Return:12/25/19
19
from
$201*
Viewed:an hour ago
Economy
Return:12/26/19
20
from
$212*
Viewed:an hour ago
Economy
Return:12/27/19
21
from
$249*
Viewed:an hour ago
Economy
Return:01/04/20
22
from
$259*
Viewed:15 hours ago
Economy
Return:01/02/20
23
from
$177*
Viewed:an hour ago
Economy
Return:01/06/20
24
from
$177*
Viewed:an hour ago
Economy
Return:01/07/20
25
from
$177*
Viewed:an hour ago
Economy
Return:01/08/20
26
from
$207*
Viewed:an hour ago
Economy
Return:01/09/20
27
from
$214*
Viewed:19 hours ago
Economy
Return:01/01/20
28
from
$177*
Viewed:an hour ago
Economy
Return:01/11/20
29
from
$242*
Viewed:an hour ago
Economy
Return:01/12/20
30
from
$177*
Viewed:an hour ago
Economy
Return:01/13/20
31
from
$177*
Viewed:an hour ago
Economy
Return:01/07/20
from
$154*
Viewed:an hour ago
Economy
Return:01/08/20
from
$154*
Viewed:an hour ago
Economy
Return:01/09/20
from
$157*
Viewed:an hour ago
Economy
Return:01/10/20
from
$154*
Viewed:an hour ago
Economy
Return:01/11/20
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Looking for additional flights from Boston to Washington?

FromToDatesFare TypePrice

Boston (BOS)

Washington (IAD)

Depart: 02/15/20

Return: 02/29/20

Roundtrip
from
$442*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/11/19

Return: 12/17/19

Roundtrip
from
$332*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/18/19

Return: 12/23/19

Roundtrip
from
$252*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/19/19

Return: 12/23/19

Roundtrip
from
$272*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/26/19

Return: 12/30/19

Roundtrip
from
$237*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/30/19

Return: 01/03/20

Roundtrip
from
$307*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/09/19

Return: 12/10/19

Roundtrip
from
$501*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 03/18/20

Return: 03/22/20

Roundtrip
from
$146*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 03/11/20

Return: 03/15/20

Roundtrip
from
$186*
Viewed:1dayago

Boston (BOS)

Washington (IAD)

Depart: 12/16/19

Return: 12/17/19

Roundtrip
from
$267*
Viewed:1dayago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Washington

Sunday overcast clouds
38°F 12/08/19
Monday moderate rain
47°F 12/09/19
Tuesday heavy intensity rain
64°F 12/10/19
Wednesday snow
41°F 12/11/19
Thursday overcast clouds
32°F 12/12/19
Friday moderate rain
37°F 12/13/19
Saturday moderate rain
41°F 12/14/19
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