Moving air traffic controllers means retraining them on the quirks of a new facility, and the process can take years.

Travel woes at Newark Airport continued Monday after a weekend featuring another radar outage, a ground stop and dozens of flight cancellations and delays. The FAA announced Newark was operating on a ground delay program,

The recent chronic delays and cancellations at New Jersey's largest airport have highlighted the shortage of air traffic controllers and the aging equipment they use, which President Donald Trump's administration wants to replace.

One runway is closed and there's a shortage of air-traffic controllers, causing flights to be delayed or canceled.

United Airlines is waiving change fees and fare differences for flights impacted by the disruptions at Newark Airport.

A new software update prevented a third radar outage in the last two weeks at New Jersey's busy Newark airport when a telecommunications line failed again over the weekend, Transportation Secretary Sean Duffy said Monday.

With summer travel season approaching, the crisis at the New Jersey airport could mean weeks, if not months, of misery for travelers.