United Flight 1257 Deals & Information (2025/2026)

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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 $179 and $99 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 11 - Sun, Jun 21
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$179 Roundtrip, found 16 hours ago
$179
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jun 11 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Jun 21, priced at $179 found 16 hours ago
Fri, Dec 26 - Sun, Dec 28
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$195 Roundtrip, found 3 days ago
$195
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 26 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Dec 28, priced at $195 found 3 days ago
Wed, Dec 24 - Sat, Dec 27
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$211 Roundtrip, found 6 days ago
$211
Roundtrip
found 6 days ago
Select United flight, departing Wed, Dec 24 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sat, Dec 27, priced at $211 found 6 days ago
Thu, Dec 18 - Sun, Dec 21
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$212 Roundtrip, found 20 hours ago
$212
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Dec 18 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Dec 21, priced at $212 found 20 hours ago
Thu, Dec 18 - Sun, Dec 21
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$214 Roundtrip, found 20 hours ago
$214
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Dec 18 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Dec 21, priced at $214 found 20 hours ago
Fri, Dec 26 - Sun, Dec 28
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$216 Roundtrip, found 3 days ago
$216
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 26 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Sun, Dec 28, priced at $216 found 3 days ago
Sat, Dec 20 - Fri, Jan 2
RDU
Raleigh - Durham Intl.
IAD
Washington Dulles Intl.
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select United flight, departing Sat, Dec 20 from Raleigh - Durham Intl. to Washington Dulles Intl., returning Fri, Jan 2, priced at $217 found 2 days ago