United Flight 3543 Deals & Information (2026/2027)

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United Flight 3543 Route Deals From $134

The cheapest prices found with in the last 7 days for return flights were $117 and $134 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 24 - Wed, Oct 28
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$117 Roundtrip, found 15 hours ago
$117
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Oct 24 from Logan Intl. to Washington Dulles Intl., returning Wed, Oct 28, priced at $117 found 15 hours ago
Sat, Aug 22 - Tue, Aug 25
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$120 Roundtrip, found 3 hours ago
$120
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Aug 22 from Logan Intl. to Washington Dulles Intl., returning Tue, Aug 25, priced at $120 found 3 hours ago
Thu, Aug 20 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$132 Roundtrip, found 1 day ago
$132
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 20 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $132 found 1 day ago
Sat, Aug 22 - Tue, Aug 25
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$140 Roundtrip, found 3 hours ago
$140
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Aug 22 from Logan Intl. to Washington Dulles Intl., returning Tue, Aug 25, priced at $140 found 3 hours ago
Thu, Sep 3 - Tue, Sep 8
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$156 Roundtrip, found 1 day ago
$156
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 3 from Logan Intl. to Washington Dulles Intl., returning Tue, Sep 8, priced at $156 found 1 day ago
Sat, Oct 24 - Wed, Oct 28
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$162 Roundtrip, found 15 hours ago
$162
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Oct 24 from Logan Intl. to Washington Dulles Intl., returning Wed, Oct 28, priced at $162 found 15 hours ago
Mon, Aug 17 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$166 Roundtrip, found 5 hours ago
$166
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 17 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $166 found 5 hours ago
Tue, Dec 15 - Mon, Dec 21
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$167 Roundtrip, found 8 hours ago
$167
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 15 from Logan Intl. to Washington Dulles Intl., returning Mon, Dec 21, priced at $167 found 8 hours ago
Fri, Aug 21 - Mon, Aug 24
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$171 Roundtrip, found 11 hours ago
$171
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Aug 21 from Logan Intl. to Washington Dulles Intl., returning Mon, Aug 24, priced at $171 found 11 hours ago
Mon, Aug 17 - Sat, Aug 22
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$176 Roundtrip, found 5 hours ago
$176
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 17 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 22, priced at $176 found 5 hours ago
Fri, Nov 6 - Sat, Nov 7
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$177 Roundtrip, found 12 hours ago
$177
Roundtrip
found 12 hours ago
Select United flight, departing Fri, Nov 6 from Logan Intl. to Washington Dulles Intl., returning Sat, Nov 7, priced at $177 found 12 hours ago
Sat, Oct 24 - Wed, Oct 28
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$179 Roundtrip, found 15 hours ago
$179
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Oct 24 from Logan Intl. to Washington Dulles Intl., returning Wed, Oct 28, priced at $179 found 15 hours ago
Sat, Aug 8 - Thu, Aug 13
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$180 Roundtrip, found 10 hours ago
$180
Roundtrip
found 10 hours ago
Select United flight, departing Sat, Aug 8 from Logan Intl. to Washington Dulles Intl., returning Thu, Aug 13, priced at $180 found 10 hours ago
Sat, Aug 8 - Thu, Aug 13
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$181 Roundtrip, found 10 hours ago
$181
Roundtrip
found 10 hours ago
Select United flight, departing Sat, Aug 8 from Logan Intl. to Washington Dulles Intl., returning Thu, Aug 13, priced at $181 found 10 hours ago