Airline has trimmed its daily routes following technology and staffing issues affecting New Jersey hub.

The airline told the Sun the e-mail was sent to passengers who have upcoming flights to or through Newark’s airport, as well as its MileagePlus

United Airlines is offering to waive certain fees for customers who endured massive delays and cancellations at Newark Liberty International Airport. The airline announced Tuesday that customers affected by the disruptions are eligible to reschedule with no additional fees.

United Airlines Holdings expects flight reductions at Newark airport to linger through summer and into fall as the crucial travel hub struggles to recover from air traffic control glitches that have already disrupted hundreds of flights.

By Rajesh Kumar Singh 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.

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

One air traffic controller (ATC) and a trainee will operate every flight in and out of Newark between 6.30pm-9.30pm — despite 15 staffers being the standard requirement for a shift.

"We've turned the corner, and we have the commitment," United Airlines CEO Scott Kirby said of reforms to the Federal Aviation Administration.