United Flight 1257 Deals & Information (2026/2027)

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United Flight 1257 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $133 and $99 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 7 - Tue, Apr 21
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$133 Roundtrip, found 2 days ago
$133
Roundtrip
found 2 days ago
Select United flight, departing Tue, Apr 7 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, Apr 21, priced at $133 found 2 days ago
Sat, May 2 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$152 Roundtrip, found 1 day ago
$152
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 2 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $152 found 1 day ago
Tue, Apr 7 - Tue, Apr 21
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$156 Roundtrip, found 2 days ago
$156
Roundtrip
found 2 days ago
Select United flight, departing Tue, Apr 7 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, Apr 21, priced at $156 found 2 days ago
Fri, May 1 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$156 Roundtrip, found 1 day ago
$156
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 1 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $156 found 1 day ago
Sat, May 2 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$164 Roundtrip, found 1 day ago
$164
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 2 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $164 found 1 day ago
Fri, May 1 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$167 Roundtrip, found 1 day ago
$167
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 1 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $167 found 1 day ago
Fri, May 1 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 1 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $168 found 1 day ago
Thu, May 7 - Mon, May 11
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$171 Roundtrip, found 4 days ago
$171
Roundtrip
found 4 days ago
Select United flight, departing Thu, May 7 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Mon, May 11, priced at $171 found 4 days ago
Fri, Apr 17 - Mon, Apr 20
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 17 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Mon, Apr 20, priced at $177 found 1 day ago
Fri, May 1 - Tue, May 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 1 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, May 5, priced at $179 found 1 day ago
Fri, Apr 17 - Sun, Apr 19
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 17 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Apr 19, priced at $181 found 1 day ago
Sat, Mar 7 - Sun, Mar 8
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$183 Roundtrip, found 1 day ago
$183
Roundtrip
found 1 day ago
Select United flight, departing Sat, Mar 7 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Mar 8, priced at $183 found 1 day ago
Thu, Mar 5 - Sun, Mar 8
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$185 Roundtrip, found 16 hours ago
$185
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Mar 5 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Mar 8, priced at $185 found 16 hours ago
Wed, Mar 11 - Sun, Mar 15
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$194 Roundtrip, found 6 days ago
$194
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 11 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Mar 15, priced at $194 found 6 days ago