United Flight 4177 Deals & Information (2025/2026)

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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 $131 and $66 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Nov 16 - Thu, Nov 20
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$131 Roundtrip, found 3 days ago
$131
Roundtrip
found 3 days ago
Select United flight, departing Sun, Nov 16 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Thu, Nov 20, priced at $131 found 3 days ago
Tue, Nov 25 - Sat, Nov 29
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 Tue, Nov 25 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $135 found 4 days ago
Tue, Nov 25 - Sat, Nov 29
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$138 Roundtrip, found 4 days ago
$138
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 25 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $138 found 4 days ago
Wed, Dec 24 - Wed, Dec 31
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$141 Roundtrip, found 4 days ago
$141
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 24 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Wed, Dec 31, priced at $141 found 4 days ago
Tue, Nov 25 - Sat, Nov 29
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$144 Roundtrip, found 4 days ago
$144
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 25 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $144 found 4 days ago
Thu, Oct 9 - Fri, Oct 10
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$149 Roundtrip, found 5 days ago
$149
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 9 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Fri, Oct 10, priced at $149 found 5 days ago
Thu, Nov 27 - Sat, Nov 29
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$154 Roundtrip, found 3 days ago
$154
Roundtrip
found 3 days ago
Select United flight, departing Thu, Nov 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $154 found 3 days ago
Thu, Nov 27 - Sat, Nov 29
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$163 Roundtrip, found 3 days ago
$163
Roundtrip
found 3 days ago
Select United flight, departing Thu, Nov 27 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $163 found 3 days ago
Mon, Dec 29 - Mon, Jan 12
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$163 Roundtrip, found 4 days ago
$163
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 29 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Mon, Jan 12, priced at $163 found 4 days ago
Tue, Nov 25 - Sat, Nov 29
EWR
Newark Liberty Intl. Airport
IAD
Washington Dulles Intl.
$164 Roundtrip, found 4 days ago
$164
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 25 from Newark Liberty Intl. Airport to Washington Dulles Intl., returning Sat, Nov 29, priced at $164 found 4 days ago