United Flight 1257 Deals & Information (2026/2027)

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United Flight 1257 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were $175 and $101 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 28 - Sun, Mar 1
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 28 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Mar 1, priced at $175 found 5 days ago
Wed, Sep 2 - Tue, Sep 15
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$179 Roundtrip, found 5 days ago
$179
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 2 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, Sep 15, priced at $179 found 5 days ago
Sat, Feb 21 - Sun, Feb 22
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select United flight, departing Sat, Feb 21 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Feb 22, priced at $181 found 2 days ago
Fri, Feb 20 - Sun, Feb 22
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$184 Roundtrip, found 2 days ago
$184
Roundtrip
found 2 days ago
Select United flight, departing Fri, Feb 20 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Feb 22, priced at $184 found 2 days ago
Sat, Feb 28 - Sun, Mar 1
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 28 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Mar 1, priced at $189 found 5 days ago
Sun, Mar 22 - Tue, Mar 24
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$202 Roundtrip, found 2 days ago
$202
Roundtrip
found 2 days ago
Select United flight, departing Sun, Mar 22 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Tue, Mar 24, priced at $202 found 2 days ago
Tue, Mar 3 - Thu, Mar 5
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$204 Roundtrip, found 2 days ago
$204
Roundtrip
found 2 days ago
Select United flight, departing Tue, Mar 3 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Thu, Mar 5, priced at $204 found 2 days ago
Sat, Feb 21 - Sun, Feb 22
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$211 Roundtrip, found 2 days ago
$211
Roundtrip
found 2 days ago
Select United flight, departing Sat, Feb 21 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Feb 22, priced at $211 found 2 days ago