United Flight 1999 Deals & Information (2026/2027)

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United Flight 1999 Route Deals From $65

The cheapest prices found with in the last 7 days for return flights were $128 and $65 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Feb 20 - Fri, Mar 6
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$128 Roundtrip, found 2 days ago
$128
Roundtrip
found 2 days ago
Select United flight, departing Fri, Feb 20 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Fri, Mar 6, priced at $128 found 2 days ago
Sat, Mar 7 - Sat, Mar 14
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$129 Roundtrip, found 12 hours ago
$129
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Mar 7 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $129 found 12 hours ago
Fri, Feb 13 - Fri, Feb 20
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$130 Roundtrip, found 19 hours ago
$130
Roundtrip
found 19 hours ago
Select United flight, departing Fri, Feb 13 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Fri, Feb 20, priced at $130 found 19 hours ago
Fri, Feb 13 - Mon, Feb 16
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$131 Roundtrip, found 20 hours ago
$131
Roundtrip
found 20 hours ago
Select United flight, departing Fri, Feb 13 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Feb 16, priced at $131 found 20 hours ago
Thu, Mar 12 - Sun, Mar 15
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 Thu, Mar 12 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sun, Mar 15, priced at $132 found 3 days ago
Sat, Mar 7 - Sat, Mar 14
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$133 Roundtrip, found 12 hours ago
$133
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Mar 7 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $133 found 12 hours ago
Fri, Mar 13 - Mon, Mar 16
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$135 Roundtrip, found 15 hours ago
$135
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Mar 13 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Mar 16, priced at $135 found 15 hours ago
Sat, Jan 31 - Sat, Feb 7
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$137 Roundtrip, found 12 hours ago
$137
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Jan 31 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Feb 7, priced at $137 found 12 hours ago
Thu, Jan 29 - Thu, Feb 5
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 29 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Thu, Feb 5, priced at $138 found 2 days ago
Sat, Jan 31 - Sat, Feb 7
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$139 Roundtrip, found 12 hours ago
$139
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Jan 31 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Feb 7, priced at $139 found 12 hours 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.