United Flight UA4177 Deals & Information (2025/2026)

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United Flight 4177 Route Deals From $65

The cheapest prices found with in the last 7 days for return flights were $129 and $65 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 19 - Sun, Sep 21
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$129 Roundtrip, found 8 hours ago
$129
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 19 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Sep 21, priced at $129 found 8 hours ago
Thu, Jul 3 - Sat, Jul 5
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$132 Roundtrip, found 20 hours ago
$132
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Jul 3 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Jul 5, priced at $132 found 20 hours ago
Fri, Jul 4 - Wed, Jul 9
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$132 Roundtrip, found 1 day ago
$132
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jul 4 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Wed, Jul 9, priced at $132 found 1 day ago
Thu, Oct 16 - Fri, Oct 31
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$137 Roundtrip, found 2 days ago
$137
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 16 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Fri, Oct 31, priced at $137 found 2 days ago
Fri, Sep 19 - Sun, Sep 21
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$138 Roundtrip, found 8 hours ago
$138
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 19 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Sep 21, priced at $138 found 8 hours ago
Wed, Jul 16 - Thu, Jul 17
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$140 Roundtrip, found 2 days ago
$140
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 16 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Thu, Jul 17, priced at $140 found 2 days ago
Thu, Jul 3 - Sat, Jul 5
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, Jul 3 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Jul 5, priced at $140 found 20 hours ago
Thu, Jul 31 - Sun, Aug 3
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$141 Roundtrip, found 1 day ago
$141
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 31 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Aug 3, priced at $141 found 1 day ago
Sat, Apr 25 - Sat, May 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$146 Roundtrip, found 4 days ago
$146
Roundtrip
found 4 days ago
Select United flight, departing Sat, Apr 25 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, May 2, priced at $146 found 4 days ago
Fri, Jun 27 - Mon, Jun 30
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Mon, Jun 30, priced at $151 found 1 day ago