United Flight 3543 Deals & Information (2026/2027)

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United Flight 3543 Route Deals From $108

The cheapest prices found with in the last 7 days for return flights were $120 and $108 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$120 Roundtrip, found 2 hours ago
$120
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $120 found 2 hours ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$132 Roundtrip, found 2 hours ago
$132
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $132 found 2 hours ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$171 Roundtrip, found 2 hours ago
$171
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $171 found 2 hours ago
Fri, Aug 14 - Tue, Aug 18
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 14 from Logan Intl. to Washington Dulles Intl., returning Tue, Aug 18, priced at $175 found 5 days ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$183 Roundtrip, found 2 hours ago
$183
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $183 found 2 hours ago
Thu, Oct 22 - Mon, Oct 26
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$184 Roundtrip, found 4 days ago
$184
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 22 from Logan Intl. to Washington Dulles Intl., returning Mon, Oct 26, priced at $184 found 4 days ago
Fri, Aug 14 - Tue, Aug 18
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$186 Roundtrip, found 5 days ago
$186
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 14 from Logan Intl. to Washington Dulles Intl., returning Tue, Aug 18, priced at $186 found 5 days ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$192 Roundtrip, found 2 hours ago
$192
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $192 found 2 hours ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$193 Roundtrip, found 2 hours ago
$193
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $193 found 2 hours ago
Fri, Aug 14 - Tue, Aug 18
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$196 Roundtrip, found 5 days ago
$196
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 14 from Logan Intl. to Washington Dulles Intl., returning Tue, Aug 18, priced at $196 found 5 days ago
Tue, Aug 18 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$197 Roundtrip, found 4 days ago
$197
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 18 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $197 found 4 days ago
Tue, Aug 18 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 18 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $198 found 4 days ago