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 1 hour ago
$129
Roundtrip
found 1 hour 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 1 hour ago
Wed, Aug 27 - Tue, Sep 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$131 Roundtrip, found 21 hours ago
$131
Roundtrip
found 21 hours ago
Select United flight, departing Wed, Aug 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Tue, Sep 2, priced at $131 found 21 hours ago
Wed, Sep 17 - Sat, Sep 20
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$136 Roundtrip, found 4 days ago
$136
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 17 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Sep 20, priced at $136 found 4 days ago
Fri, Oct 3 - Sun, Oct 5
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select United flight, departing Fri, Oct 3 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Oct 5, priced at $138 found 2 days ago
Fri, Sep 19 - Sun, Sep 21
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$145 Roundtrip, found 1 hour ago
$145
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Sep 19 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Sep 21, priced at $145 found 1 hour ago
Wed, Aug 13 - Sun, Aug 17
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$149 Roundtrip, found 6 days ago
$149
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 13 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Aug 17, priced at $149 found 6 days ago
Thu, Oct 30 - Sun, Nov 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$159 Roundtrip, found 11 hours ago
$159
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Oct 30 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Nov 2, priced at $159 found 11 hours ago
Thu, Oct 16 - Mon, Oct 20
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$160 Roundtrip, found 6 days ago
$160
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 16 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Mon, Oct 20, priced at $160 found 6 days ago
Thu, Oct 30 - Sun, Nov 2
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$163 Roundtrip, found 11 hours ago
$163
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Oct 30 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Nov 2, priced at $163 found 11 hours ago
Fri, Sep 19 - Sun, Sep 21
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$165 Roundtrip, found 1 hour ago
$165
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Sep 19 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sun, Sep 21, priced at $165 found 1 hour ago