Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.

CHICAGO (Reuters) -United Airlines is facing a financial hit and potential long-term reputational harm as flight delays and cancellations pile up due to ongoing disruptions at Newark airport - one of its largest hubs and among the busiest in the country.

Newark airport is struggling with radar issues, staffing shortages and construction delays — and travel experts recommend alternative airports as passengers report significant flight disruptions.

The Federal Aviation Administration (FAA) briefly slowed air traffic at Newark Liberty International Airport on Sunday because a new telecommunications issue affected the Philadelphia facility

United Airlines is letting customers change flights for free as flight delays and cancellations continue to grow at Newark Liberty International Airport in New Jersey.

The disruptions at Newark Airport continue with delays and cancellations, after more than 500 flights were impacted Sunday​.

United Airlines on Tuesday is unveiling upgraded interiors on new Boeing 787 Dreamliners as it seeks to reassure customers after a series of issues and hundreds of flight disruptions in recent weeks at its nearby hub of Newark Liberty International Airport.

Don't be surprised if the delays, cancellations and safety concerns that have affected Newark Liberty International Airport in recent weeks spread to the rest of the U.S. That's according to Transportation Secretary Sean Duffy, who on Sunday said "antiquated systems" at major airports across the country need a multibillion-dollar overhaul.