United Flight UA591 Deals & Information (2025/2026)

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United Flight 591 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 Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 11 - Mon, Dec 15
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$129 Roundtrip, found 5 hours ago
$129
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Dec 11 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 15, priced at $129 found 5 hours ago
Thu, Dec 11 - Mon, Dec 15
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$133 Roundtrip, found 5 hours ago
$133
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Dec 11 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 15, priced at $133 found 5 hours ago
Sat, Sep 20 - Sat, Sep 27
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 20 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Sep 27, priced at $137 found 1 day ago
Thu, Jul 24 - Thu, Jul 31
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$139 Roundtrip, found 6 days ago
$139
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 24 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Thu, Jul 31, priced at $139 found 6 days ago
Wed, Jul 2 - Sat, Jul 5
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$149 Roundtrip, found 6 days ago
$149
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jul 2 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sat, Jul 5, priced at $149 found 6 days ago
Fri, Jul 4 - Mon, Jul 7
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$150 Roundtrip, found 1 hour ago
$150
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 4 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Jul 7, priced at $150 found 1 hour ago
Mon, Jun 30 - Tue, Jul 1
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$150 Roundtrip, found 4 days ago
$150
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jun 30 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Tue, Jul 1, priced at $150 found 4 days ago
Sun, Aug 17 - Mon, Aug 18
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$160 Roundtrip, found 5 days ago
$160
Roundtrip
found 5 days ago
Select United flight, departing Sun, Aug 17 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Aug 18, priced at $160 found 5 days ago
Thu, Nov 6 - Mon, Nov 10
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$161 Roundtrip, found 6 days ago
$161
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 6 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 10, priced at $161 found 6 days ago
Fri, Aug 22 - Sun, Aug 24
IAD
Washington Dulles Intl.
EWR
Newark Liberty Intl. Airport
$162 Roundtrip, found 1 day ago
$162
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 22 from Washington Dulles Intl. to Newark Liberty Intl. Airport, returning Sun, Aug 24, priced at $162 found 1 day ago

Frequently asked questions

What route does flight number UA591 take?
You'll be landing into DEN from PHX if you've booked a ticket on flight number UA591. You'll be in the sky for 1 hour and 52 minutes on this trip. It's also good to note that the flight conveniently travels direct.
What terminal does UA591 fly out of?
Flights to and from Sky Harbor Intl. Airport (PHX) and Denver Intl. Airport (DEN) are served by UA591, and those traveling on this route typically depart from Terminal 3.
What kind of plane is on flight number UA591?
Get ready to jump on board a Boeing 737 MAX 9 if you've reserved a seat on flight UA591. Most services from Phoenix Sky Harbor Intl. Airport to Denver, CO Airport (DEN-Denver Intl.) operate using this aircraft type.
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 UA591 flight with Travelocity, please visit our Customer Service Portal.