United Flight 577 Deals & Information (2026/2027)

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United Flight 577 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were $260 and $101 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Feb 4 - Wed, Feb 11
FLL
Fort Lauderdale - Hollywood Intl.
EWR
Newark Liberty Intl. Airport
$260 Roundtrip, just found
$260
Roundtrip
just found
Select United flight, departing Wed, Feb 4 from Fort Lauderdale - Hollywood Intl. to Newark Liberty Intl. Airport, returning Wed, Feb 11, priced at $260 just found

Frequently asked questions

What route does flight number UA577 take?
UA577 travels from DEN to GEG directly. This service generally takes 2 hours and 24 minutes.
How often is UA577 on time?
Roughly 90% of UA577 flights arrive according to scheduled times — so if you're jetting from Denver, CO Airport (DEN-Denver Intl.) to GEG, you can be confident that you'll touch down at your destination ASAP. In the rare event that your United Airlines trip is delayed, you can expect to wait about 8 minutes. Because of the air carrier's top-notch service, this route has a star rating of 4.6.
What kind of plane is on flight number UA577?
The Boeing 737-800 is the kind of plane that's mostly used for flight number UA577. This flight almost always sets off from DEN and comes in to land at GEG.
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 UA577 flight with Travelocity, please visit our Customer Service Portal.