United Flight 1999 Deals & Information (2026/2027)

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United Flight 1999 Route Deals From $53

The cheapest prices found with in the last 7 days for return flights were $108 and $53 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 2 - Tue, Feb 3
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$108 Roundtrip, found 3 days ago
$108
Roundtrip
found 3 days ago
Select United flight, departing Mon, Feb 2 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Tue, Feb 3, priced at $108 found 3 days ago
Tue, Feb 24 - Fri, Feb 27
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$117 Roundtrip, found 3 days ago
$117
Roundtrip
found 3 days ago
Select United flight, departing Tue, Feb 24 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Fri, Feb 27, priced at $117 found 3 days ago
Sun, Feb 22 - Mon, Feb 23
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$120 Roundtrip, found 3 days ago
$120
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 22 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Feb 23, priced at $120 found 3 days ago
Wed, Nov 25 - Mon, Nov 30
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$129 Roundtrip, found 11 hours ago
$129
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Nov 25 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 30, priced at $129 found 11 hours ago
Fri, Feb 6 - Sat, Feb 7
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$130 Roundtrip, found 22 hours ago
$130
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Feb 6 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Feb 7, priced at $130 found 22 hours ago
Fri, Mar 6 - Sun, Mar 8
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$132 Roundtrip, found 3 days ago
$132
Roundtrip
found 3 days ago
Select United flight, departing Fri, Mar 6 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sun, Mar 8, priced at $132 found 3 days ago
Fri, Mar 13 - Mon, Mar 16
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$133 Roundtrip, found 16 hours ago
$133
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Mar 13 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Mar 16, priced at $133 found 16 hours ago
Wed, Feb 4 - Thu, Feb 5
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$135 Roundtrip, found 2 days ago
$135
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Thu, Feb 5, priced at $135 found 2 days ago
Sun, Jan 25 - Mon, Jan 26
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 25 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Jan 26, priced at $151 found 1 day ago
Sat, Mar 14 - Sun, Mar 15
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$158 Roundtrip, found 2 days ago
$158
Roundtrip
found 2 days ago
Select United flight, departing Sat, Mar 14 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sun, Mar 15, priced at $158 found 2 days ago

Frequently asked questions

What route does flight number UA1999 take?
UA1999 jets between San Francisco Airport and Denver, CO Airport (DEN-Denver Intl.) and is a direct flight. This trip generally takes 2 hours and 34 minutes.
What terminal does UA1999 fly out of?
UA1999 runs between San Francisco, CA Airport (SFO-San Francisco Intl.) and Denver Intl. Airport (DEN), and those taking this flight commonly depart from Terminal 3.
What kind of plane is on flight number UA1999?
The Airbus A320 is the aircraft model most often used for flight UA1999. This flight typically departs from San Francisco, CA Airport (SFO-San Francisco Intl.) and comes in to land at DIA airport.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA1999 flight with Travelocity, please visit our Customer Service Portal.