United Flight 4177 Deals & Information (2026/2027)

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United Flight 4177 Route Deals From $66

The cheapest prices found with in the last 7 days for return flights were $119 and $66 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Feb 27 - Mon, Mar 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Mon, Mar 2, priced at $119 found 1 day ago
Fri, Feb 27 - Mon, Mar 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$120 Roundtrip, found 1 day ago
$120
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Mon, Mar 2, priced at $120 found 1 day ago
Mon, Aug 10 - Thu, Aug 13
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$129 Roundtrip, found 2 days ago
$129
Roundtrip
found 2 days ago
Select United flight, departing Mon, Aug 10 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Thu, Aug 13, priced at $129 found 2 days ago
Wed, Feb 18 - Fri, Feb 20
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$130 Roundtrip, found 14 hours ago
$130
Roundtrip
found 14 hours ago
Select United flight, departing Wed, Feb 18 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Fri, Feb 20, priced at $130 found 14 hours ago
Wed, Apr 29 - Sat, May 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$132 Roundtrip, found 2 days ago
$132
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 29 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, May 2, priced at $132 found 2 days ago
Wed, Apr 29 - Sat, May 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$133 Roundtrip, found 2 days ago
$133
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 29 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, May 2, priced at $133 found 2 days ago
Wed, Apr 29 - Sat, May 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$134 Roundtrip, found 2 days ago
$134
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 29 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, May 2, priced at $134 found 2 days ago
Fri, Feb 6 - Sat, Feb 7
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$135 Roundtrip, found 4 days ago
$135
Roundtrip
found 4 days ago
Select United flight, departing Fri, Feb 6 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Feb 7, priced at $135 found 4 days ago
Thu, Feb 12 - Sun, Feb 15
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$139 Roundtrip, found 20 hours ago
$139
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Feb 12 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Feb 15, priced at $139 found 20 hours ago
Thu, Feb 12 - Sun, Feb 15
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$140 Roundtrip, found 20 hours ago
$140
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Feb 12 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Feb 15, priced at $140 found 20 hours ago